PrimeGrid: News http://www.primegrid.com/ Rytis Slatkevičius (contact) and PrimeGrid community Sat, 24 Jul 2010 18:20:23 GMT en-us http://www.primegrid.com/rss_image.gif PrimeGrid http://www.primegrid.com/ <![CDATA[The Full Moon Challenge - 24 hrs to go]]> http://www.primegrid.com/forum_thread.php?id=2623 http://www.primegrid.com/forum_thread.php?id=2623 forum thread. ]]> Sat, 24 Jul 2010 18:20:24 GMT <![CDATA[The Full Moon Challenge]]> http://www.primegrid.com/forum_thread.php?id=2621 http://www.primegrid.com/forum_thread.php?id=2621 Proth Prime Search (LLR) application. Builds are available for Mac, Linux, and Windows. For more information, please see this forum thread. ]]> Wed, 21 Jul 2010 05:42:44 GMT <![CDATA[PSP finds another Mega Prime]]> http://www.primegrid.com/forum_thread.php?id=2602 http://www.primegrid.com/forum_thread.php?id=2602 Prime Sierpinski Project has discovered their third Mega Prime: 90527*2^9162167+1. It is 2,758,093 digits long and will rank as the 12th largest known prime. The project has now found 18 primes total. There are 11 primes left to solve the Prime Sierpinski Problem. For more information, please see this forum post. ]]> Thu, 01 Jul 2010 18:40:10 GMT <![CDATA[9 hours til the Birthday/Summer Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2588 http://www.primegrid.com/forum_thread.php?id=2588 The Riesel Problem (Sieve) application will culminate with a finale on the Summer Solstice. For more information, please see this forum post. ]]> Wed, 16 Jun 2010 02:34:37 GMT <![CDATA[100M Cobblestones]]> http://www.primegrid.com/forum_thread.php?id=2587 http://www.primegrid.com/forum_thread.php?id=2587 shanky123 of Norway, for becoming the first single user account to reach 100M cobblestones (10 June) at PrimeGrid. An outstanding and amazing accomplishment after being here for just over 9 months. Additionally, BOINCstats has just become only the 5th team to surpass 100M cobblestones. Congratulations all around. ]]> Tue, 15 Jun 2010 21:21:19 GMT <![CDATA[Unexpected outage]]> http://www.primegrid.com/forum_thread.php?id=2580 http://www.primegrid.com/forum_thread.php?id=2580 Sun, 13 Jun 2010 18:37:01 GMT <![CDATA[7 days til the Birthday/Summer Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2575 http://www.primegrid.com/forum_thread.php?id=2575 The Riesel Problem (Sieve) application. Note the special start time of 11:28 UTC so that the Challenge can end exactly on the Summer Solstice. For more information, please see this forum post. ]]> Wed, 09 Jun 2010 14:19:25 GMT <![CDATA[PrimeGrid's Birthday/Summer Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2568 http://www.primegrid.com/forum_thread.php?id=2568 PrimeGrid's Challenge Series continues with the "Birthday/Summer Solstice Challenge". Come join us as we celebrate PrimeGrid's 5th birthday. A 5 day Challenge is being offered on The Riesel Problem (Sieve) application. The celebration will culminate on 21 June, the Summer Solstice. For more information, please see this forum post. ]]> Fri, 04 Jun 2010 01:55:53 GMT <![CDATA[Server software upgrade]]> http://www.primegrid.com/forum_thread.php?id=2543 http://www.primegrid.com/forum_thread.php?id=2543 Tue, 11 May 2010 19:08:55 GMT <![CDATA[200M Cobblestones]]> http://www.primegrid.com/forum_thread.php?id=2542 http://www.primegrid.com/forum_thread.php?id=2542 SETI.Germany, the first team to reach 100M cobblestones at PrimeGrid...doubling their 100M cobblestone achievement in just over 9 months!!! :) ]]> Sun, 02 May 2010 02:00:00 GMT <![CDATA[Mega Prime for 321 Prime Search]]> http://www.primegrid.com/forum_thread.php?id=2541 http://www.primegrid.com/forum_thread.php?id=2541 The Largest Known Primes Database ranked 17th overall. This is the second mega prime for the 3*2^n-1 form, and it is the third largest found mega-digit prime using LLR. The discovery was made by David Mumper (Mumps) of the United States using an AMD Quad-Core Opteron 2378 with 8 GB RAM running Linux. This computer took just over 15 hours 24 minutes to complete the primality test. David is a member of the SETI.USA team. Official announcement and decimal representation of the prime. ]]> Mon, 26 Apr 2010 05:10:00 GMT <![CDATA[Earth Day Challenge]]> http://www.primegrid.com/forum_thread.php?id=2540 http://www.primegrid.com/forum_thread.php?id=2540 Earth Day Challenge will begin. :) Come join us for an Earth Day (22 April) + 7 day Challenge on the 321 Prime Search (LLR) application. Even if you are not able to access "green" energy, check out the Earth Day discussion thread on other ways to offset your Challenge power consumption. For more information, please see this forum post. ]]> Thu, 22 Apr 2010 05:10:00 GMT <![CDATA[Earth Day Challenge]]> http://www.primegrid.com/forum_thread.php?id=2539 http://www.primegrid.com/forum_thread.php?id=2539 Earth Day is less than a week away. Hopefully the wind turbines are spinning and the solar panels are soaking up the sunlight. Come join us for an Earth Day (22 April) + 7 day Challenge on the 321 Prime Search (LLR) application. Even if you are not able to access "green" energy, check out the Earth Day discussion thread on other ways to offset your Challenge power consumption. For more information, please see this forum post. ]]> Fri, 16 Apr 2010 02:30:00 GMT <![CDATA[First ever AP26 Found!]]> http://www.primegrid.com/forum_thread.php?id=2538 http://www.primegrid.com/forum_thread.php?id=2538 Benoãt Perichon [AF>HFR>RR] Jim PROFIT) of France. He is a member of the L'Alliance Francophone team. The AP26 progression is written as 43142746595714191+23681770*23#*n for n=0..25. It was found by a PS3 running Linux. For more details on this find, please see this forum post. Congratulations to everyone who participated in the AP26 Search. It has been a very challenging and rewarding project. Also, a special thanks to all the programmers who ported AP26 making it the most accessible project at PrimeGrid.

Note: there will be no more work once the queue is empty, so we would like to ask people not running for the badges to stop running AP26 subproject and give a chance for others to reach their final levels. ]]> Mon, 12 Apr 2010 23:55:00 GMT <![CDATA[Earth Day Challenge]]> http://www.primegrid.com/forum_thread.php?id=2537 http://www.primegrid.com/forum_thread.php?id=2537 Earth Day is approaching so grab a couple of wind turbines and some solar panels and come join us for an Earth Day Challenge. Starting 22 April 2010, Earth Day, PrimeGrid will continue its Challenge series with an Earth Day + 7 day Challenge on the 321 Prime Search (LLR) application. Even if you are not able to access "green" energy, check out the Earth Day discussion thread on other ways to offset your Challenge power consumption. That way you can "have your cake, and eat it too!" :D For more information, please see this forum post. ]]> Thu, 08 Apr 2010 20:35:00 GMT <![CDATA[PRPNet's Fool's Day Mini Challenge]]> http://www.primegrid.com/forum_thread.php?id=2536 http://www.primegrid.com/forum_thread.php?id=2536 forum post. ]]> Fri, 02 Apr 2010 15:35:00 GMT <![CDATA[Record AP25 Found]]> http://www.primegrid.com/forum_thread.php?id=2535 http://www.primegrid.com/forum_thread.php?id=2535 Chris Wingate (skinny9699) of the United States. He is a member of the Ubuntu Linux team. The AP25 progression is written as 18626565939034793+30821486*23#*n for n=0..24. It was found in the AP26 Search by an NVIDIA GeForce GTX 285 on an AMD Phenom 9750 running Linux. For more details on this find and the AP26 search, please see this forum post. ]]> Fri, 02 Apr 2010 15:15:00 GMT <![CDATA[The Ides of March Challenge]]> http://www.primegrid.com/forum_thread.php?id=2534 http://www.primegrid.com/forum_thread.php?id=2534 SETI.USA as the top team and Shanky as the top individual. Thank you to everyone who participated!!! For more stats and information, please see this forum post. ]]> Wed, 17 Mar 2010 02:00:00 GMT <![CDATA[The Ides of March Challenge]]> http://www.primegrid.com/forum_thread.php?id=2533 http://www.primegrid.com/forum_thread.php?id=2533 Prime Sierpinski Project/Seventeen or Bust (Sieve) application. For more information, please see this forum post. ]]> Sun, 14 Mar 2010 19:00:00 GMT <![CDATA[Record AP25 Found]]> http://www.primegrid.com/forum_thread.php?id=2532 http://www.primegrid.com/forum_thread.php?id=2532 Dave Sunderland (DaveSun) of the United States. The AP25 progression is written as 25300381597038677+28603610*23#*n for n=0..24. It was found in the AP26 Search by an Intel Pentium 4 3.20GHz running 32 bit Windows XP Professional. For more details on this find and the AP26 search, please see this forum post. ]]> Sun, 14 Mar 2010 07:45:00 GMT <![CDATA[The Ides of March Challenge]]> http://www.primegrid.com/forum_thread.php?id=2531 http://www.primegrid.com/forum_thread.php?id=2531 forum post. ]]> Tue, 09 Mar 2010 14:15:00 GMT <![CDATA[Tour de Primes 2010 has ended!!!]]> http://www.primegrid.com/forum_thread.php?id=2530 http://www.primegrid.com/forum_thread.php?id=2530 lennart SM5YMT of Sweden and the PrimeSearchTeam once again topped the leader boards winning his second yellow jersey in a row. He also picked up the green jersey for the first time. [SG]marodeur6 of Germany and team SETI.Germany takes home the checkered jersey. For more details about the tour and complete standings, please see this forum post. ]]> Mon, 01 Mar 2010 21:35:00 GMT <![CDATA[BEWARE the Ides of March!!!]]> http://www.primegrid.com/forum_thread.php?id=2529 http://www.primegrid.com/forum_thread.php?id=2529 Challenge series continues with the Ides of March Challenge. Once again we observe Caesar's demise by finding factors that will bring some k/n pairs to their demise. A 24 hour (15-16 March) Challenge is being offered on PrimeGrid's Prime Sierpinski Project/Seventeen or Bust (Sieve) application. For more information, please see this forum post. ]]> Mon, 01 Mar 2010 20:40:00 GMT <![CDATA[New AP25 Found]]> http://www.primegrid.com/forum_thread.php?id=2528 http://www.primegrid.com/forum_thread.php?id=2528 Keith Pattenden ([url=http://www.primegrid.com/show_user.php?userid= 18217]KWSN - Sir Brian - err sorry - wrong film![/url]) of the United Kingdom. He is a member of the The Knights Who Say Ni! team. The AP25 progression is written as 42592855872841649+19093314*23#*n for n=0..24. It was found by an NVIDIA GeForce GTX 260 in an Intel Core2 Quad 6600 @ 2.40GHz running 32 bit Windows XP Professional. For more details on this find and the AP26 search, please see this forum post. ]]> Thu, 25 Feb 2010 13:00:00 GMT <![CDATA[New AP25 Found]]> http://www.primegrid.com/forum_thread.php?id=2527 http://www.primegrid.com/forum_thread.php?id=2527 Bryan Little (mfl0p) of the United States. He is a member of the [H]ard|OC team. The AP25 progression is written as 58555890166091939+10416756*23#*n for n=0..24. It was found by an NVIDIA GeForce GTX 260 in an Intel Core2 Quad @ 2.40GHz running Linux. For more details on this find and the AP26 search, please see this forum post. ]]> Wed, 24 Feb 2010 19:30:00 GMT <![CDATA[The Year of the Tiger Challenge]]> http://www.primegrid.com/forum_thread.php?id=2526 http://www.primegrid.com/forum_thread.php?id=2526 Prime Pages with over half of those making it into the Top 1000. Over 2M tasks (1M WU's) were completed resulting in over 23M cobblestones awarded...an astounding amount of work done for an LLR Challenge. Congratulations to SETI.USA as the top team and Mr. Hankey as the top individual. Thank you to everyone who participated!!! For more stats and information, please see this forum post. ]]> Tue, 23 Feb 2010 14:50:00 GMT <![CDATA[Planned maintenance]]> http://www.primegrid.com/forum_thread.php?id=2525 http://www.primegrid.com/forum_thread.php?id=2525
Update 14:05 UTC: maintenance has been completed successfully.
Update 15:07 UTC: turns out database is misbehaving, so we need to extend the outage.
Update 17:00 UTC: it seems that everything is running fine. ]]> Sun, 21 Feb 2010 11:45:00 GMT <![CDATA[The Year of the Tiger Challenge]]> http://www.primegrid.com/forum_thread.php?id=2524 http://www.primegrid.com/forum_thread.php?id=2524 forum thread. ]]> Wed, 17 Feb 2010 14:10:00 GMT <![CDATA[The Year of the Tiger Challenge]]> http://www.primegrid.com/forum_thread.php?id=2523 http://www.primegrid.com/forum_thread.php?id=2523 48 hours remain so it's not too late to jump in the fray and see if you too can capture a prime. For more information, please see this forum thread. ]]> Mon, 15 Feb 2010 18:00:00 GMT <![CDATA[The Year of the Tiger Challenge]]> http://www.primegrid.com/forum_thread.php?id=2522 http://www.primegrid.com/forum_thread.php?id=2522 24 hours remain till the start of the 2010 Challenge Series and Valentine's Day in the West and the Year of the Tiger in the East. Cupid is flying overhead while the tiger circles below. Please come join us in an East & West fearless attack on Proth Primes. A 3 day (14-17 Feb) Challenge is being offered on PrimeGrid's Proth Prime Search (LLR). Application builds are available for Mac, Linux, and Windows. For more information, please see this forum thread. ]]> Sat, 13 Feb 2010 18:00:00 GMT <![CDATA[The Year of the Tiger Challenge]]> http://www.primegrid.com/forum_thread.php?id=2521 http://www.primegrid.com/forum_thread.php?id=2521 2010 Challenge Series with the Year of the Tiger. A 3 day (14-17 Feb) Challenge is being offered on PrimeGrid's Proth Prime Search (LLR). Come join us as we stalk the primes. Application builds are available for Mac, Linux, and Windows. For more information, please see this forum thread. ]]> Sun, 07 Feb 2010 14:50:00 GMT <![CDATA[54 digit factor to F14!!!]]> http://www.primegrid.com/forum_thread.php?id=2520 http://www.primegrid.com/forum_thread.php?id=2520 GIMPS has found another Fermat factor, a 54 digit factor to F14!!! What makes this unique and exciting is that it is the first factor for F14. It was found by Tapio Rajala of Finland. For more information on this discovery, see this mersenne forum thread. For more information about the factoring status of Fermat numbers, please see Wilfrid Keller's Prime factors of Fermat numbers site. ]]> Thu, 04 Feb 2010 18:45:00 GMT <![CDATA[The Year of the Tiger Challenge]]> http://www.primegrid.com/forum_thread.php?id=2519 http://www.primegrid.com/forum_thread.php?id=2519 2010 Challenge Series with the Year of the Tiger Challenge which just so happens to coincide with Valentine's Day in the West. The Tiger is the third sign in the Chinese Zodiac cycle, and it is a sign of fearlessness. It is considered incredibly brave, evidenced by its willingness to engage in battle. So whether it's your love of Tigers or love of primes, please come join us in an East & West fearless attack on Proth Primes. A 3 day (14-17 Feb) Challenge is being offered on PrimeGrid's Proth Prime Search (LLR). Builds are available for Mac, Linux, and Windows. For more information, please see this forum thread. ]]> Wed, 03 Feb 2010 02:30:00 GMT <![CDATA[New AP25 Found]]> http://www.primegrid.com/forum_thread.php?id=2518 http://www.primegrid.com/forum_thread.php?id=2518 Jan Stenzel (Jan Stenzel) of Poland. He is a member of the BOINC@Poland team. The AP25 progression is written as 49644063847333931+7851809 *23#*n for n=0..24. It was found by an Intel Core i7 860 @ 2.80GHz running 64 bit Windows 7. For more details on this find and the AP26 search, please see this forum post. ]]> Tue, 02 Feb 2010 04:20:00 GMT <![CDATA[Tour de Primes 2010]]> http://www.primegrid.com/forum_thread.php?id=2517 http://www.primegrid.com/forum_thread.php?id=2517 Tour de Primes 2010. ]]> Mon, 01 Feb 2010 00:00:00 GMT <![CDATA[Seventeen or Bust]]> http://www.primegrid.com/forum_thread.php?id=2516 http://www.primegrid.com/forum_thread.php?id=2516 Tour de Primes 2010, we are happy to announce that PrimeGrid is partnering with Seventeen or Bust to help solve the Sierpinski problem! This finally brings PrimeGrid full circle with SoB/PSP primality testing as well as combined sieving. Special thanks to Louis Helm of Seventeen or Bust for helping to make this collaboration possible! For more details on the new search, please see this forum thread. ]]> Sun, 31 Jan 2010 17:30:00 GMT <![CDATA[Tour de Primes 2010]]> http://www.primegrid.com/forum_thread.php?id=2515 http://www.primegrid.com/forum_thread.php?id=2515 Tour de Primes 2010. ]]> Sat, 30 Jan 2010 00:30:00 GMT <![CDATA[New AP25 Found]]> http://www.primegrid.com/forum_thread.php?id=2514 http://www.primegrid.com/forum_thread.php?id=2514 Gerrit Slomma (roadrunner_gs) of Germany. He is a member of the Special: Off-Topic team. The AP25 progression is written as 46428033558097831+12893265*23#*n for n=0..24. It was found by an Intel Core2 6400 @ 2.13GHz running Linux. For more details on this find and the AP26 search, please see this [url=http://www.primegrid.com/forum_thread.php?id=1246&nowrap=true# 20398]forum post[/url]. ]]> Fri, 15 Jan 2010 16:00:00 GMT <![CDATA[New AP25 Found]]> http://www.primegrid.com/forum_thread.php?id=2513 http://www.primegrid.com/forum_thread.php?id=2513 Dan Swearingen (endearingswan) of the United States. The AP25 progression is written as 24715375237181843+19071018*23#*n for n=0..24. It was found by an Intel Pentium 4 @ 3.00GHz running 32 bit Windows XP Professional. For more details on this find and the AP26 search, please see this forum post. ]]> Tue, 05 Jan 2010 15:35:00 GMT <![CDATA[Megabit Prime for 27121 Search]]> http://www.primegrid.com/forum_thread.php?id=2512 http://www.primegrid.com/forum_thread.php?id=2512 The Largest Known Primes Database ranked 56th overall. The discovery was made by Honza Cholt (Honza) of the Czech Republic using a dual Intel Xeon @ 3.06GHz with 4GB RAM. This computer took 2 hours 38 minutes and 59 seconds to complete the primality test. Honza is a member of the team BOINC.SK For more details about this search, please see this forum thread. ]]> Sat, 26 Dec 2009 06:25:00 GMT <![CDATA[2009 Challenge Series]]> http://www.primegrid.com/forum_thread.php?id=2511 http://www.primegrid.com/forum_thread.php?id=2511 SETI.Germany (repeat Champion) as the top team and j2satx as the top individual. They are the overall winners to PrimeGrid's 2009 Challenge Series. For a list of other top finishers, please see this forum thread. As always, thank you for your help and support. None of this is possible without YOU! :) Have a safe and happy Holiday season. See you next year for PrimeGrid's 2010 Challenge Series! ]]> Thu, 24 Dec 2009 07:40:00 GMT <![CDATA[The Winter Solstice Challenge ]]> http://www.primegrid.com/forum_thread.php?id=2510 http://www.primegrid.com/forum_thread.php?id=2510 SETI.USA as the top team and Mr. Hankey as the top individual. For more stats and information, please see this forum post This concludes PrimeGrid's 2009 Challenge Series. Overall final results will be posted soon. Many thanks goes out to everyone who participated!!! We wish you a Happy Holidays and see you next year! ]]> Mon, 21 Dec 2009 21:00:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2509 http://www.primegrid.com/forum_thread.php?id=2509 Mon, 21 Dec 2009 14:47:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2508 http://www.primegrid.com/forum_thread.php?id=2508 forum thread. ]]> Sun, 20 Dec 2009 14:00:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2507 http://www.primegrid.com/forum_thread.php?id=2507 13 hours remain till the Winter Solstice Challenge. The pre-fires have a nice red glow, and we're expecting them to turn a deep blue once the Challenge begins. Who knows...by the end of the Challenge they may even become white hot. :) Please come join us in a Winter Festival that is sure warm you up. The top spots for the 2009 Challenge Series are up for grabs. A 3 day (72 hour) Challenge is being offered on PrimeGrid's AP26 Project. Builds are available for Mac, Linux, Windows, Solaris, Cell/BE Linux (Playstation 3), and for the first time, GPU-CUDA23 app. For more information on how to join, please see this forum thread. ]]> Fri, 18 Dec 2009 04:47:00 GMT <![CDATA[Record AP25 & AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2506 http://www.primegrid.com/forum_thread.php?id=2506 Rune Nordbøe Skillingstad (runesk) of Norway. He is a member of Team Norway. The AP25 progression is written as 12353443596260323+23793841*23#*n for n=0..24. The AP24 progression is written as 12353443596260323+23793841*23#*n for n=1..24. It was found in the AP26 Search by an NVIDIA GeForce GTX 285 on an Intel i7 CPU 940 @ 2.93GHz running 32 bit Windows...the first significant AP found by a GPU!!! For more details on this find and the AP26 search, please see this forum post. ]]> Thu, 17 Dec 2009 04:40:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2505 http://www.primegrid.com/forum_thread.php?id=2505 2009 Challenge Series top spot. A 3 day (72 hour) Challenge is being offered on PrimeGrid's AP26 Project. Builds are available for Mac, Linux, Windows, Solaris, Cell/BE Linux (Playstation 3), and for the first time, GPU-CUDA23 app. For more information on how to join, please see this forum thread. ]]> Wed, 16 Dec 2009 18:00:00 GMT <![CDATA[Megabit Prime for 12121 Search]]> http://www.primegrid.com/forum_thread.php?id=2504 http://www.primegrid.com/forum_thread.php?id=2504 The Largest Known Primes Database ranked 76th overall. The discovery was made by Peter Kaiser (Puzzle-Peter) of Germany using a dual Intel Xeon X5472 @3.0GHz with 16GB RAM. This computer took 59 minutes and 17 seconds to complete the primality test. Peter is a member of the team SETI.Germany. For more details about this search, please see this forum thread. ]]> Sun, 13 Dec 2009 16:20:00 GMT <![CDATA[AP26 CUDA Application Released]]> http://www.primegrid.com/forum_thread.php?id=2503 http://www.primegrid.com/forum_thread.php?id=2503 forum thread. ]]> Thu, 10 Dec 2009 19:15:00 GMT <![CDATA[Possible issues because of GPU apps.]]> http://www.primegrid.com/forum_thread.php?id=2502 http://www.primegrid.com/forum_thread.php?id=2502 Thu, 10 Dec 2009 17:30:00 GMT <![CDATA[World Record Generalized Woodall Prime]]> http://www.primegrid.com/forum_thread.php?id=2501 http://www.primegrid.com/forum_thread.php?id=2501 563528*13563528-1 The prime is 627,745 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 1st for generalized Woodall primes and 65th overall. It is the largest non-base 2/non-generalized Fermat prime ever found. The discovery was made by Lennart Vogel (lennart SM5YMT) of Sweden using an Intel Q6600 @ 2.4 GHz with 4 GB RAM. This computer took about 3 hours and 54 minutes to complete the probable prime test. It took just over 30 hours to prove primality. For more details, please see the official announcement. ]]> Wed, 09 Dec 2009 05:20:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2500 http://www.primegrid.com/forum_thread.php?id=2500 PrimeGrid's Challenge series continues with the Winter Solstice Challenge. Please come join us in observing Nature's ending/beginning of a cycle...a Winter Festival to determine who will take home the 2009 Challenge Series top ranking. There is a tie in the team category and a very close race among the top 3 in the individual category. :) A 3 day (18-21 Dec) Challenge is being offered on PrimeGrid's AP26 Project. Builds are available for Mac, Linux, Windows, Solaris, Cell/BE Linux (Playstation 3), and for the first time, possibly a GPU app. For more information, please see this forum thread. ]]> Fri, 04 Dec 2009 06:10:00 GMT <![CDATA[13 Gold Badges]]> http://www.primegrid.com/forum_thread.php?id=2499 http://www.primegrid.com/forum_thread.php?id=2499 Bruno Courty (bcoz) of France, PrimeGrid's first participant to achieve a GOLD badge in all 13 projects. This is quite a remarkable feat. A complete set of badges is a major milestone, but 13 GOLD badges is a phenomenal achievement. Bruno has been a participant at PrimeGrid since 27 Feb 2007 and is a member of the team L'Alliance Francophone. He is one of the lucky ones who received a TPS gold badge before the twin prime was found. Thank you to everyone participating. We hope to see many more achieve this milestone! ]]> Sun, 29 Nov 2009 21:45:00 GMT <![CDATA[Record AP25 Found]]> http://www.primegrid.com/forum_thread.php?id=2498 http://www.primegrid.com/forum_thread.php?id=2498 Ian Dickinson (Vato) of the United Kingdom. He is a member of Team-Goobee.org. The progression is written as 46176957093163301+1109121*23#*n for n=0..24. It was found in the AP26 Search by an Intel Pentium III @ 1266MHz running 32 bit Linux!!! For more details on this find and the AP26 search, please see this forum post. ]]> Wed, 25 Nov 2009 00:35:00 GMT <![CDATA[The Giving Thanks Challenge]]> http://www.primegrid.com/forum_thread.php?id=2497 http://www.primegrid.com/forum_thread.php?id=2497 SETI.Germany as the top team and [XTBA>XTC] FRED as the top individual. In the overall Challenge Series standings, there is now a tie for the top spot between SETI.GERMANY and BOINCstats. There is also a tie for second in the individual rankings with [SG]marodeur6 and [XTBA>XTC] FRED. This sets the stage for an exciting finale in the Winter Solstice Challenge. Thank you to everyone who participated!!! For more stats and information, please see this forum post. ]]> Sun, 15 Nov 2009 23:00:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2496 http://www.primegrid.com/forum_thread.php?id=2496 Roald Solbjørg (Roald) of Norway. He is a member of Team Norway. The progression is written as 4891686128805269+19453568*23#*n for n=0..23. It was found by a PS3 in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Fri, 13 Nov 2009 14:20:00 GMT <![CDATA[The Giving Thanks Challenge]]> http://www.primegrid.com/forum_thread.php?id=2495 http://www.primegrid.com/forum_thread.php?id=2495 forum thread. ]]> Thu, 12 Nov 2009 18:45:00 GMT <![CDATA[The Giving Thanks Challenge]]> http://www.primegrid.com/forum_thread.php?id=2494 http://www.primegrid.com/forum_thread.php?id=2494 PrimeGrid's Challenge series continues with the Giving Thanks Challenge. Please come join us in a celebration of PrimeGrid's users. In this season of giving thanks, we wish to thank you, the user, for another AMAZING year of crunching. A 24 hour (13-14 November) Challenge is being offered on PrimeGrid's Prime Sierpinski Problem/Seventeen or Bust (sieve) application. Builds are available for Mac, Linux and Windows. For more information, please see this forum thread. ]]> Wed, 11 Nov 2009 02:30:00 GMT <![CDATA[Generalized Fermat Prime Search]]> http://www.primegrid.com/forum_thread.php?id=2493 http://www.primegrid.com/forum_thread.php?id=2493 forum post. ]]> Tue, 10 Nov 2009 03:40:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2492 http://www.primegrid.com/forum_thread.php?id=2492 Marcus Rosario (Ritzgit) of the United States. He is a member of the Gay USA team. The progression is written as 4687877159107031+18203167*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Mon, 09 Nov 2009 05:20:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2491 http://www.primegrid.com/forum_thread.php?id=2491 Chris Wingate (skinny9699) of the United States. He is a member of the Ubuntu Linux team. The progression is written as 1948053460212667+17745794*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Thu, 05 Nov 2009 05:05:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2490 http://www.primegrid.com/forum_thread.php?id=2490 Ian Dickinson (Vato) of the United Kingdom. He is a member of Team-Goobee.org. It was found by an Intel Pentium III @ 1266MHz running 32 bit Linux!!! The progression is written as 3634080452156039+16981607*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Sun, 01 Nov 2009 15:15:00 GMT <![CDATA[The Harvest Festival Challenge]]> http://www.primegrid.com/forum_thread.php?id=2489 http://www.primegrid.com/forum_thread.php?id=2489 SETI.Germany as the top team and [SG]marodeur6 as the top individual. Many thanks goes out to everyone who participated!!! For more stats and information, please see this forum post. ]]> Sat, 10 Oct 2009 04:45:00 GMT <![CDATA[Record AP24's Found]]> http://www.primegrid.com/forum_thread.php?id=2488 http://www.primegrid.com/forum_thread.php?id=2488 forum thread. ]]> Sat, 10 Oct 2009 03:15:00 GMT <![CDATA[The Harvest Festival Challenge]]> http://www.primegrid.com/forum_thread.php?id=2487 http://www.primegrid.com/forum_thread.php?id=2487 PrimeGrid's Challenge series continues with the Harvest Festival Challenge. Please come join us in a Fall harvest of primes. A 48 hour (02-04 October) Challenge is being offered on PrimeGrid's Proth Prime Search (LLR) application. Builds are available for Linux, MacIntel and Windows. For more information, please see this forum thread. ]]> Mon, 28 Sep 2009 16:35:00 GMT <![CDATA[Unexpected outage]]> http://www.primegrid.com/forum_thread.php?id=2486 http://www.primegrid.com/forum_thread.php?id=2486 Mon, 28 Sep 2009 14:20:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2485 http://www.primegrid.com/forum_thread.php?id=2485 Kevin Erickson) of the United States. He is a member of the BOINCstats team. The progression is written as 10307159737232191+14120563*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Sat, 19 Sep 2009 00:15:00 GMT <![CDATA[Record AP25 Found]]> http://www.primegrid.com/forum_thread.php?id=2484 http://www.primegrid.com/forum_thread.php?id=2484 SETI.USA. The progression is written as 18162964758258289+3755664*23#*n for n=0..24. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Tue, 08 Sep 2009 04:45:00 GMT <![CDATA[Megadigit Probable Prime Found]]> http://www.primegrid.com/forum_thread.php?id=2483 http://www.primegrid.com/forum_thread.php?id=2483 paleseptember) who discovered the megadigit probable prime 2^4583176+2131. At 1,379,674 decimal digits, this is the first known probable prime with over a million digits. It should soon appear as the new probable prime record at the website of Henri and Renaud Lifchitz, PRP Records: Probable Primes Top 10000. Ben is participating in the project "Five or Bust" - The Dual Sierpinski Problem. This project is outside of PrimeGrid and can be located in the Mersenne forum. For additional information about this project, please see the Welcome to "Five or Bust!" thread. There are only 2 remaining sequences. To help with PRP testing, see this thread. To help with sieving, see this thread. ]]> Thu, 03 Sep 2009 00:00:00 GMT <![CDATA[Record AP25 Found]]> http://www.primegrid.com/forum_thread.php?id=2482 http://www.primegrid.com/forum_thread.php?id=2482 SETI.Germany. The progression is written as 20919497549238289+3155495*23#*n for n=0..24. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Wed, 02 Sep 2009 14:40:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2481 http://www.primegrid.com/forum_thread.php?id=2481 mfl0p) of the United States. He is a member of the [H]ard|OCP team. The progression is written as 13678065943093049+13223804*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Tue, 25 Aug 2009 12:35:00 GMT <![CDATA[The Dog Days of Summer Challenge]]> http://www.primegrid.com/forum_thread.php?id=2480 http://www.primegrid.com/forum_thread.php?id=2480 PrimeGrid's Challenge series continues with the Dog Days of Summer Challenge. Please come join us in ushering an end to the hot sweltering days of summer. A 5 day (18-23 August) Challenge is being offered on PrimeGrid's Woodall Prime Search (LLR)) application. Builds are available for Linux and Windows. For more information, please see this forum thread. ]]> Mon, 17 Aug 2009 12:10:00 GMT <![CDATA[Sophie Germain Prime Search]]> http://www.primegrid.com/forum_thread.php?id=2479 http://www.primegrid.com/forum_thread.php?id=2479 PrimeGrid preferences page. For more information, please see this forum post. ]]> Sun, 16 Aug 2009 15:55:00 GMT <![CDATA[A Request for Assistance]]> http://www.primegrid.com/forum_thread.php?id=2478 http://www.primegrid.com/forum_thread.php?id=2478 KE7AAR) (UPDATE: Found) of the United States and team BOINC Synergy, shares credit for the World Record Twin Primes. (spinner@) of Japan and Team 2ch is the finder of the World Record Cullen Prime. If you have contact with either of these individuals, please have them check their BOINC emails or private messages in PrimeGrid's forum. Several attempts have already been made through these channels. Additionally, if you have any information that might help us in contacting these individuals, please contact us here: http://www.primegrid.com/contact.php
(Update 2009-08-15 18:00 UTC) KE7AAR has been contacted, thanks to everyone for help! ]]> Fri, 14 Aug 2009 01:50:00 GMT <![CDATA[Cullen/Woodall Sieve]]> http://www.primegrid.com/forum_thread.php?id=2477 http://www.primegrid.com/forum_thread.php?id=2477 Fri, 14 Aug 2009 01:40:00 GMT <![CDATA[50M Cobblestones for SG Grid!!!]]> http://www.primegrid.com/forum_thread.php?id=2476 http://www.primegrid.com/forum_thread.php?id=2476 SG Grid, for becoming the first single user account to reach 50M cobblestones at PrimeGrid. An outstanding and amazing accomplishment after being here for less than 8 months. ]]> Sun, 09 Aug 2009 14:40:00 GMT <![CDATA[World Record Twin Primes returned]]> http://www.primegrid.com/forum_thread.php?id=2475 http://www.primegrid.com/forum_thread.php?id=2475 Thu, 06 Aug 2009 16:20:00 GMT <![CDATA[World Record Cullen Mega Prime found]]> http://www.primegrid.com/forum_thread.php?id=2474 http://www.primegrid.com/forum_thread.php?id=2474 The Largest Known Primes Database ranked 15th overall. It is the largest known Cullen prime and the largest found Mega Prime using LLR. This remarkable discovery comes less than 4 months after the last prime and is only the 16th known Cullen prime. Contact with PrimeGrid participant (spinner@) has not been returned. However, the participant is from Japan and is a member of Team 2ch. The prime was found using an Intel Xeon L5420 @ 2.50GHz with 6 GB RAM running Windows XP Professional. This computer took about 71 hours 58 minutes to complete the primality test. More details to come after contact is made. ]]> Wed, 05 Aug 2009 02:45:00 GMT <![CDATA[New AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2473 http://www.primegrid.com/forum_thread.php?id=2473 [FVG] bax) of Italy. He is a member of team BOINC.Italy. The progression is written as 25545151920212759+1140241*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Mon, 03 Aug 2009 17:05:00 GMT <![CDATA[World Record Cullen Mega Prime returned]]> http://www.primegrid.com/forum_thread.php?id=2472 http://www.primegrid.com/forum_thread.php?id=2472 Team 2ch. Verification is in progress. Stay tuned for more details. ]]> Sat, 01 Aug 2009 15:40:00 GMT <![CDATA[New AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2471 http://www.primegrid.com/forum_thread.php?id=2471 Tostada) of the United States. He is a member of team Ars Technica. The progression is written as 20187352211709911+1799216*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Thu, 30 Jul 2009 14:10:00 GMT <![CDATA[New AP24's Found]]> http://www.primegrid.com/forum_thread.php?id=2470 http://www.primegrid.com/forum_thread.php?id=2470 andmore) of Germany and Tina Kent (Penguirl) of the United States. Andreas' progression is written as 19471368812966089+410682*23#*n for n=0..23 and Tina's progression is written as 20909681071069667+234797*23#*n for n=0..23. Both were found in the AP26 Search. For more details on these finds and the AP26 search, please see the following forum posts: Andreas' AP24 | Tina's AP24. ]]> Fri, 24 Jul 2009 18:35:00 GMT <![CDATA[100M Cobblestones]]> http://www.primegrid.com/forum_thread.php?id=2469 http://www.primegrid.com/forum_thread.php?id=2469 SETI.Germany, the first team to reach 100M cobblestones at PrimeGrid...doubling their 50M cobblestone achievement in only 5 1/2 months!!! Is 150M in their sights by year's end? We'll have to wait and see. Again, congratulations! :) ]]> Fri, 24 Jul 2009 14:40:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2468 http://www.primegrid.com/forum_thread.php?id=2468 janm) of Germany. The progression is written as 10317962076055027+10241601*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Sun, 19 Jul 2009 18:15:00 GMT <![CDATA[PlayStation3 application]]> http://www.primegrid.com/forum_thread.php?id=2467 http://www.primegrid.com/forum_thread.php?id=2467 the forum thread in order to get it running at full speed. Thanks to mfl0p. ]]> Sat, 18 Jul 2009 18:35:00 GMT <![CDATA[Follow PrimeGrid on Twitter]]> http://www.primegrid.com/forum_thread.php?id=2466 http://www.primegrid.com/forum_thread.php?id=2466 PrimeGrid Twitter on Web: http://www.twitter.com/primegrid. Thanks to Lexs for implementing the updates script. ]]> Sat, 18 Jul 2009 18:30:00 GMT <![CDATA[New AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2465 http://www.primegrid.com/forum_thread.php?id=2465 SG Arsenic) of the United Kingdom. He is a member of the SETI.Germany team. The progression is written as 19516186145019209+313705*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Sat, 18 Jul 2009 02:05:00 GMT <![CDATA[The New Moon Challenge]]> http://www.primegrid.com/forum_thread.php?id=2464 http://www.primegrid.com/forum_thread.php?id=2464 PrimeGrid's Challenge Series continues with the New Moon Challenge. Please come join us in ushering in July's New Moon along with a new project to the Challenge Series. A 24 hour (21 July – 22 July) Challenge is being offered on PrimeGrid's AP26 (Arithmetic Progression of 26 primes) application. Builds are available for Linux, Mac, Windows, PS3, & Solaris. For more information, please see this forum thread. P.S. Also, the "most significant" Solar Eclipse this century is occuring on 22 July. :) See forum thread for more details. ]]> Tue, 14 Jul 2009 18:25:00 GMT <![CDATA[New AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2463 http://www.primegrid.com/forum_thread.php?id=2463 mfl0p) of the United States. He is a member of the [H]ard|OCP team. The progression is written as 7979661543967237+9936237*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Sun, 12 Jul 2009 23:35:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2462 http://www.primegrid.com/forum_thread.php?id=2462 Narwhal) of the United States. He is a member of Team Picard. The progression is written as 39421708111691+9740894*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Fri, 10 Jul 2009 14:15:00 GMT <![CDATA[New AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2461 http://www.primegrid.com/forum_thread.php?id=2461 mindc) of Poland. He is a member of the BOINC@Poland team. The progression is written as 5531900872160491+9383796*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Mon, 06 Jul 2009 03:45:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2460 http://www.primegrid.com/forum_thread.php?id=2460 SG Arsenic) of the United Kingdom. He is a member of the SETI.Germany team. The progression is written as 13432401425380607+9219580*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Sat, 04 Jul 2009 13:25:00 GMT <![CDATA[AP26 application available for Solaris]]> http://www.primegrid.com/forum_thread.php?id=2459 http://www.primegrid.com/forum_thread.php?id=2459 Psst... the PS3 version is coming ;) ]]> Wed, 01 Jul 2009 06:30:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2458 http://www.primegrid.com/forum_thread.php?id=2458 AFXTBA Pitheque) of France. He is a member of the L'Alliance Francophone team. The progression is written as 14992521666441877+8832442*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Tue, 30 Jun 2009 19:50:00 GMT <![CDATA[New Top Host!]]> http://www.primegrid.com/forum_thread.php?id=2457 http://www.primegrid.com/forum_thread.php?id=2457 Worldwide Center of Mathematics, owner of the new top host at PrimeGrid. While this position has changed many times in the past, what makes this occasion unique is that this is the first time the top host is a Mac!!! EDIT: The above is in terms of RAC. In terms of total credit, UL1 holds a commanding lead of over 5M cobblestones with this host. ]]> Sat, 20 Jun 2009 02:05:00 GMT <![CDATA[The sieves have been Mac'd out!]]> http://www.primegrid.com/forum_thread.php?id=2456 http://www.primegrid.com/forum_thread.php?id=2456 Mon, 15 Jun 2009 03:25:00 GMT <![CDATA[GIMPS does it again!!!]]> http://www.primegrid.com/forum_thread.php?id=2455 http://www.primegrid.com/forum_thread.php?id=2455 The Great Internet Mersenne Prime Search (GIMPS)! On April 12th, Odd Magnar Strindmo of Norway discovered the 47th known Mersenne prime, 2^42,643,801-1. It is the second largest known prime at 12,837,064 digits, only 141,125 digits smaller than the Mersenne prime found last August. The prime was independently verified June 12th. For more information, please visit the GIMPS site. Again, congratulations!!! ]]> Sat, 13 Jun 2009 04:20:00 GMT <![CDATA[PrimeGrid's Birthday/Summer Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2454 http://www.primegrid.com/forum_thread.php?id=2454 forum post. ]]> Thu, 11 Jun 2009 03:45:00 GMT <![CDATA[PrimeGrid's Birthday/Summer Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2453 http://www.primegrid.com/forum_thread.php?id=2453 PrimeGrid's Challenge Series continues with the "Birthday/Summer Solstice Challenge". A 9 day Challenge is being offered on the Prime Sierpinski Problem (LLR) application. We are celebrating PrimeGrid's 4th birthday on 12 June...culminating 21 June on the Summer Solstice. It seems fitting that the sun will shine the longest for the project with the longest WU. For more information, please see this forum post. ]]> Sun, 07 Jun 2009 06:30:00 GMT <![CDATA[Record APs Found]]> http://www.primegrid.com/forum_thread.php?id=2452 http://www.primegrid.com/forum_thread.php?id=2452 sosnahojna - team BOINC@Poland) of Poland for the AP22 record and Eric Markle (Nikodemus - team BOINCstats) of the United States for the AP23 record. They were found in the AP26 Search. For more details on these finds and the AP26 search, please see these forum posts - AP22, AP23. ]]> Fri, 29 May 2009 22:30:00 GMT <![CDATA[1,000,000,000 cobblestones for PrimeGrid!!!]]> http://www.primegrid.com/forum_thread.php?id=2451 http://www.primegrid.com/forum_thread.php?id=2451 Wed, 20 May 2009 18:00:00 GMT <![CDATA[Scheduled downtime]]> http://www.primegrid.com/forum_thread.php?id=2450 http://www.primegrid.com/forum_thread.php?id=2450 Sun, 17 May 2009 15:15:00 GMT <![CDATA[New Points Leader]]> http://www.primegrid.com/forum_thread.php?id=2449 http://www.primegrid.com/forum_thread.php?id=2449 SG Grid, for becoming the new points leader at PrimeGrid. What makes this accomplishment more amazing is that it was done in less than 5 months. The two projects that have benefited the most from this achievement are the Twin Prime Search and the Prime Sierpinski Problem. Again, congratulations! ]]> Fri, 15 May 2009 01:30:00 GMT <![CDATA[PrimeGrid mentioned at TEDx talk]]> http://www.primegrid.com/forum_thread.php?id=2448 http://www.primegrid.com/forum_thread.php?id=2448 TEDx Warwick talk by Francois Grey about citizen cyberscience, which also mentions PrimeGrid (at about 8:20) or download the video (215MB).
$f("player", "/flowplayer/flowplayer-3.1.0.swf", { clip: { url: '/download/TEDx/francois_grey.flv', autoPlay: false } }); ]]> Wed, 13 May 2009 18:15:00 GMT <![CDATA[Mac OS X support!]]> http://www.primegrid.com/forum_thread.php?id=2447 http://www.primegrid.com/forum_thread.php?id=2447
Thanks to Iain Bethune for compiling the apps. ]]> Mon, 11 May 2009 09:00:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2446 http://www.primegrid.com/forum_thread.php?id=2446 Gentoo Linux Users Everywhere team. The progression is written as 167806194923077+4935146*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Wed, 06 May 2009 18:30:00 GMT <![CDATA[50M Cobblestones]]> http://www.primegrid.com/forum_thread.php?id=2445 http://www.primegrid.com/forum_thread.php?id=2445 L'Alliance Francophone, for reaching the 50M cobblestones level at PrimeGrid. They are only the second team to accomplish this. It actually occurred during the Showers to Flowers Challenge so this is a bit belated. Again, congratulations! ]]> Tue, 05 May 2009 00:15:00 GMT <![CDATA[The Showers to Flowers Challenge]]> http://www.primegrid.com/forum_thread.php?id=2444 http://www.primegrid.com/forum_thread.php?id=2444 SETI.Germany as the top team and [AF>XTBA>XTC] FRED as the top individual. Many thanks goes out to everyone who participated!!! For more stats and information, please see this forum post. ]]> Sat, 02 May 2009 14:00:00 GMT <![CDATA[The Showers to Flowers Challenge]]> http://www.primegrid.com/forum_thread.php?id=2443 http://www.primegrid.com/forum_thread.php?id=2443 forum post. ]]> Wed, 29 Apr 2009 18:00:00 GMT <![CDATA[The Showers to Flowers Challenge]]> http://www.primegrid.com/forum_thread.php?id=2442 http://www.primegrid.com/forum_thread.php?id=2442 forum post. ]]> Tue, 28 Apr 2009 18:00:00 GMT <![CDATA[World Record Cullen Mega Prime found]]> http://www.primegrid.com/forum_thread.php?id=2441 http://www.primegrid.com/forum_thread.php?id=2441 The Largest Known Primes Database ranked 14th overall. It is the largest Cullen prime found and the largest found Mega Prime using LLR. The discovery was made by Dennis R. Gesker (Gesker) of the United States using an Intel Xeon E5420 @ 2.50GHz with 8GB RAM running Windows Server 2008. This computer took 32 hours 28 minutes to complete the primality test. For more details, please see the official announcement. Decimal representation of the number is also available. ]]> Tue, 21 Apr 2009 02:10:00 GMT <![CDATA[World Record Cullen Mega Prime found]]> http://www.primegrid.com/forum_thread.php?id=2440 http://www.primegrid.com/forum_thread.php?id=2440 Mon, 20 Apr 2009 19:00:00 GMT <![CDATA[Record AP25 Found]]> http://www.primegrid.com/forum_thread.php?id=2439 http://www.primegrid.com/forum_thread.php?id=2439 SKB@P). It is a farm of machines funded by BOINC@Poland members. The progression is written as 2960886048458003+2346233*23#*n for n=0..24. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Thu, 09 Apr 2009 16:15:00 GMT <![CDATA[Record AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2438 http://www.primegrid.com/forum_thread.php?id=2438 stachu @ fiddex) of Poland. The progression is written as 7960592659339799+2326495*23#*n for n=0..23. It was found in the AP26 Search. For more details on this find and the AP26 search, please see this forum post. ]]> Tue, 07 Apr 2009 15:30:00 GMT <![CDATA[New AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2437 http://www.primegrid.com/forum_thread.php?id=2437 stachu @ fiddex) of Poland. The progression is written as 6274259724784693+2522655*23#*n for n=0..23. It was found in the AP26 Search. We expect to find many more and even a few AP25's along the way to the goal of an AP26. For more details on this find and the AP26 search, please see this forum post. ]]> Sun, 05 Apr 2009 19:30:00 GMT <![CDATA[321 Prime Search finds a Mega Prime]]> http://www.primegrid.com/forum_thread.php?id=2436 http://www.primegrid.com/forum_thread.php?id=2436 3*25082306+1
The prime is 1,529,928 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 15th overall. It is the 6th largest Proth prime found and the largest found Mega Prime using LLR. The discovery was made by Andy Brady (Andy Brady) of the United States using an Intel C2Q Q8200 @ 2.33GHz with 3GB RAM running Windows Vista. This computer took about 14 hours 7 minutes to complete the primality test. Andy is a member of the BOINCstats team.
For more details, please see the official announcement. Decimal representation of the number is also available. ]]> Sun, 05 Apr 2009 07:20:00 GMT <![CDATA[321 Prime Search finds a Mega Prime]]> http://www.primegrid.com/forum_thread.php?id=2435 http://www.primegrid.com/forum_thread.php?id=2435 Sat, 04 Apr 2009 14:10:00 GMT <![CDATA[Fermat Number Divisor]]> http://www.primegrid.com/forum_thread.php?id=2434 http://www.primegrid.com/forum_thread.php?id=2434 Eric E) of the United States, the discoverer of PrimeGrid's third Fermat Number divisor in the Proth Prime Search project: 659*2^617815+1 Divides F(617813). It is the 3rd found Fermat Number divisor of 2009 and 273rd overall. It is the 6th largest Fermat Number divisor in Chris Caldwell's The Largest Known Primes Database. Incidentally, it is a new record for "weighted" Fermat Number divisors. For more information, please see this forum post. ]]> Thu, 02 Apr 2009 01:30:00 GMT <![CDATA[New AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2433 http://www.primegrid.com/forum_thread.php?id=2433 ksysju) of Poland. This is his second AP24 discovery. The progression is written as 6872932294461509+2042703*23#*n for n=0..23. It was found in the AP26 Search. We expect to find many more and even a few AP25's along the way to the goal of an AP26. For more details on this find and the AP26 search, please see this forum post. ]]> Sat, 28 Mar 2009 05:40:00 GMT <![CDATA[The Ides of March Challenge]]> http://www.primegrid.com/forum_thread.php?id=2432 http://www.primegrid.com/forum_thread.php?id=2432 BOINCstats as the top team and j2satx as the top individual. Many thanks goes out to everyone who participated!!! For more stats and information, please see this forum post. ]]> Fri, 20 Mar 2009 04:50:00 GMT <![CDATA[The Ides of March Challenge]]> http://www.primegrid.com/forum_thread.php?id=2431 http://www.primegrid.com/forum_thread.php?id=2431 BOINCstats has taken the team standings and j2satx the individual standings (unofficial). What an incredible past 24 hours. Job well done everyone!!! Congratulations all around. As for the fate of the primes, you can still hear their sorrowful moans as they are hauled off to the Top 5000 list. More details to come. ]]> Mon, 16 Mar 2009 18:35:00 GMT <![CDATA[The Ides of March Challenge]]> http://www.primegrid.com/forum_thread.php?id=2430 http://www.primegrid.com/forum_thread.php?id=2430 forum post. ]]> Mon, 16 Mar 2009 16:35:00 GMT <![CDATA[The Ides of March Challenge]]> http://www.primegrid.com/forum_thread.php?id=2429 http://www.primegrid.com/forum_thread.php?id=2429 forum post. ]]> Mon, 16 Mar 2009 02:10:00 GMT <![CDATA[The Ides of March Challenge]]> http://www.primegrid.com/forum_thread.php?id=2428 http://www.primegrid.com/forum_thread.php?id=2428 forum post. ]]> Sun, 15 Mar 2009 00:00:00 GMT <![CDATA[GCW13 Mini-Challenge]]> http://www.primegrid.com/forum_thread.php?id=2427 http://www.primegrid.com/forum_thread.php?id=2427 forum post. ]]> Sat, 14 Mar 2009 02:00:00 GMT <![CDATA[GCW13 Mini-Challenge]]> http://www.primegrid.com/forum_thread.php?id=2426 http://www.primegrid.com/forum_thread.php?id=2426 forum post. ]]> Fri, 13 Mar 2009 01:25:00 GMT <![CDATA[GCW13 Mini-Challenge]]> http://www.primegrid.com/forum_thread.php?id=2425 http://www.primegrid.com/forum_thread.php?id=2425 forum post. ]]> Mon, 09 Mar 2009 04:05:00 GMT <![CDATA[Fermat Number Divisor]]> http://www.primegrid.com/forum_thread.php?id=2424 http://www.primegrid.com/forum_thread.php?id=2424 s-yama) of Japan, the discoverer of PrimeGrid's second Fermat Number divisor in the Proth Prime Search project: 519*2^567235+1 Divides Fermat F(567233). It is only the 2nd found Fermat Number divisor of 2009 and 272nd overall. It is the 7th largest Fermat Number divisor in Chris Caldwell's The Largest Known Primes Database. Incidentally, it is a new record for "weighted" Fermat Number divisors. For more information, please see this forum post. ]]> Sat, 07 Mar 2009 03:40:00 GMT <![CDATA[New AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2423 http://www.primegrid.com/forum_thread.php?id=2423 Blast) of Sweden. The progression is written as 2725131905640097+1342336*23#*n for n=0..23. This was found in the AP26 Search. We expect to find many more and even a few AP25's along the way to the goal of an AP26. For more details on this find and the AP26 search, please see this forum post. ]]> Fri, 06 Mar 2009 23:10:00 GMT <![CDATA[The Ides of March Challenge]]> http://www.primegrid.com/forum_thread.php?id=2422 http://www.primegrid.com/forum_thread.php?id=2422 forum post. ]]> Thu, 05 Mar 2009 18:00:00 GMT <![CDATA[Statically-linked LLR wrapper]]> http://www.primegrid.com/forum_thread.php?id=2421 http://www.primegrid.com/forum_thread.php?id=2421 Tue, 03 Mar 2009 19:30:00 GMT <![CDATA[BEWARE the Ides of March!!!]]> http://www.primegrid.com/forum_thread.php?id=2420 http://www.primegrid.com/forum_thread.php?id=2420 forum post. ]]> Mon, 02 Mar 2009 04:15:00 GMT <![CDATA[Tour de Primes 2009 has ended!!!]]> http://www.primegrid.com/forum_thread.php?id=2419 http://www.primegrid.com/forum_thread.php?id=2419 forum post. ]]> Sun, 01 Mar 2009 06:55:00 GMT <![CDATA[New AP24 Found]]> http://www.primegrid.com/forum_thread.php?id=2418 http://www.primegrid.com/forum_thread.php?id=2418 BOINC@Poland. The progression is written as 13785500104035967+1004314*23#*n for n=0..23. This was found in the AP26 Search. We expect to find many more and even a few AP25's along the way to the goal of a record AP26. For more details on this find and the AP26 search, please see this forum post. ]]> Thu, 26 Feb 2009 17:45:00 GMT <![CDATA[321 Sieve]]> http://www.primegrid.com/forum_thread.php?id=2417 http://www.primegrid.com/forum_thread.php?id=2417 Thu, 19 Feb 2009 00:45:00 GMT <![CDATA[Tour de Primes 2009]]> http://www.primegrid.com/forum_thread.php?id=2416 http://www.primegrid.com/forum_thread.php?id=2416 Tour de Primes 2009. For information about PRPNet, please see this forum post. ]]> Wed, 18 Feb 2009 00:10:00 GMT <![CDATA[New LLR Wrapper for Linux]]> http://www.primegrid.com/forum_thread.php?id=2415 http://www.primegrid.com/forum_thread.php?id=2415 forum post. ]]> Tue, 17 Feb 2009 22:25:00 GMT <![CDATA[12121 Prime Search]]> http://www.primegrid.com/forum_thread.php?id=2414 http://www.primegrid.com/forum_thread.php?id=2414 forum thread. ]]> Sat, 14 Feb 2009 04:10:00 GMT <![CDATA[Prime Month]]> http://www.primegrid.com/forum_thread.php?id=2413 http://www.primegrid.com/forum_thread.php?id=2413 forum post. ]]> Tue, 10 Feb 2009 01:45:00 GMT <![CDATA[GCW13 Mini-Challenge]]> http://www.primegrid.com/forum_thread.php?id=2412 http://www.primegrid.com/forum_thread.php?id=2412 forum thread. ]]> Mon, 09 Feb 2009 04:00:00 GMT <![CDATA[50M Cobblestones]]> http://www.primegrid.com/forum_thread.php?id=2411 http://www.primegrid.com/forum_thread.php?id=2411 SETI.Germany, the first team to reach 50M cobblestones at PrimeGrid. Also, a special thanks to pschoefer, SETI.Germany's administrator at PrimeGrid, who does an excellent job managing PrimeGrid's information for such a large team. Now the race is on for 100M cobblestones...can it be reached by year's end??? and by which team??? :) ]]> Sun, 08 Feb 2009 06:15:00 GMT <![CDATA[The Year of the Ox Challenge]]> http://www.primegrid.com/forum_thread.php?id=2410 http://www.primegrid.com/forum_thread.php?id=2410 Year of the Ox is just beginning. Over 18,000 321 WU's were completed by 133 teams and 589 individuals. Congratulations to BOINCstats as the top team and WilliamWallace as the top individual. It was a GREAT start to the 2009 Challenge Series. Congratulations to everyone and thank you for participating!!! For more information, please see this forum post. ]]> Sat, 31 Jan 2009 23:45:00 GMT <![CDATA[The Year of the Ox Challenge]]> http://www.primegrid.com/forum_thread.php?id=2409 http://www.primegrid.com/forum_thread.php?id=2409 Year of the Ox Challenge and all is well. In just this short time, BOINCstats has taken a commanding lead while the individual competition is a bit closer. It's not too late to join the fireworks in a celebration of the Chinese New Year. For more information, please see this forum thread. ]]> Tue, 27 Jan 2009 21:45:00 GMT <![CDATA[The Year of the Ox Challenge]]> http://www.primegrid.com/forum_thread.php?id=2408 http://www.primegrid.com/forum_thread.php?id=2408 Year of the Ox Challenge. Come join the fireworks in a celebration of the Chinese New Year, the Year of the Ox. A 5 day (26th-31st Jan) Challenge is scheduled on PrimeGrid's 321 Prime Search LLR application. For more information, please see this forum thread. ]]> Sun, 25 Jan 2009 15:15:00 GMT <![CDATA[The Year of the Ox Challenge]]> http://www.primegrid.com/forum_thread.php?id=2407 http://www.primegrid.com/forum_thread.php?id=2407 forum thread. ]]> Tue, 20 Jan 2009 19:45:00 GMT <![CDATA[Norton Antivirus alarms]]> http://www.primegrid.com/forum_thread.php?id=2406 http://www.primegrid.com/forum_thread.php?id=2406
Please keep all discussions in this forum thread . ]]> Fri, 16 Jan 2009 15:00:00 GMT <![CDATA[First prime of 2009]]> http://www.primegrid.com/forum_thread.php?id=2405 http://www.primegrid.com/forum_thread.php?id=2405 Thu, 01 Jan 2009 15:55:00 GMT <![CDATA[Fermat Divisor]]> http://www.primegrid.com/forum_thread.php?id=2404 http://www.primegrid.com/forum_thread.php?id=2404 forum thread. ]]> Sun, 28 Dec 2008 18:45:00 GMT <![CDATA[AP26 Search]]> http://www.primegrid.com/forum_thread.php?id=2403 http://www.primegrid.com/forum_thread.php?id=2403 PrimeGrid preferences page and select AP26 (currently only available for 64 bit Linux). For more information, please see this forum thread. ]]> Sat, 27 Dec 2008 18:50:00 GMT <![CDATA[Primorial Prime Search]]> http://www.primegrid.com/forum_thread.php?id=2402 http://www.primegrid.com/forum_thread.php?id=2402 forum thread. ]]> Fri, 26 Dec 2008 07:00:00 GMT <![CDATA[2008 Challenge Series]]> http://www.primegrid.com/forum_thread.php?id=2401 http://www.primegrid.com/forum_thread.php?id=2401 SETI.Germany as the top team and lennart SM5YMT as the top individual. They are the winners to PrimeGrid's inaugural 2008 Challenge Series. For a list of other top finishers, please see this forum thread. ]]> Wed, 24 Dec 2008 15:40:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2400 http://www.primegrid.com/forum_thread.php?id=2400 WilliamWallace as the top individual and BOINCstats as the top team. For more information, please see this forum thread. The crowning of the top overall finishers in PrimeGrid's 2008 Challenge Series is next. ]]> Wed, 24 Dec 2008 01:10:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2399 http://www.primegrid.com/forum_thread.php?id=2399 forum thread. Stay tuned...final results will be coming soon. ]]> Mon, 22 Dec 2008 06:50:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2398 http://www.primegrid.com/forum_thread.php?id=2398 forum thread. ]]> Sun, 21 Dec 2008 00:04:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2397 http://www.primegrid.com/forum_thread.php?id=2397 forum thread. ]]> Sat, 20 Dec 2008 12:04:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2396 http://www.primegrid.com/forum_thread.php?id=2396 forum thread. ]]> Thu, 18 Dec 2008 18:50:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2395 http://www.primegrid.com/forum_thread.php?id=2395 forum thread. ]]> Tue, 16 Dec 2008 15:10:00 GMT <![CDATA[The Winter Solstice Challenge]]> http://www.primegrid.com/forum_thread.php?id=2394 http://www.primegrid.com/forum_thread.php?id=2394 PrimeGrid's Challenge series for 2008 ends with the Winter Solstice Challenge. Please come join us in observing Nature's ending/beginning of a cycle. A 4 day (96 hour) Challenge is being offered on PrimeGrid's Prime Sierpinski Project (Sieve) application. For more information, please see this forum thread. ]]> Wed, 10 Dec 2008 03:50:00 GMT <![CDATA[The Prime Time Challenge (Exploded)]]> http://www.primegrid.com/forum_thread.php?id=2393 http://www.primegrid.com/forum_thread.php?id=2393 SETI.Germany as the top team and zeitgeistmovie.com as the top individual. One new prime was found by Fish. Thank you to all who participated and especially for your patience. We very much appreciate the support. For more stats and information, please see this forum thread. ]]> Sun, 07 Dec 2008 04:20:00 GMT <![CDATA[The Prime Time Challenge (Reloaded)]]> http://www.primegrid.com/forum_thread.php?id=2392 http://www.primegrid.com/forum_thread.php?id=2392 forum thread. ]]> Fri, 28 Nov 2008 22:30:00 GMT <![CDATA[The Prime Time Challenge (Reloaded)]]> http://www.primegrid.com/forum_thread.php?id=2391 http://www.primegrid.com/forum_thread.php?id=2391 forum thread. ]]> Thu, 27 Nov 2008 19:00:00 GMT <![CDATA[The Proth Prime Search]]> http://www.primegrid.com/forum_thread.php?id=2390 http://www.primegrid.com/forum_thread.php?id=2390 825*2^373331+1...just in time for the Prime Time Challenge (28 Nov - 30 Nov). Come join the Challenge and find a prime for yourself. For more information, please see this forum thread. ]]> Wed, 26 Nov 2008 15:45:00 GMT <![CDATA[The Prime Time Challenge (Reloaded)]]> http://www.primegrid.com/forum_thread.php?id=2389 http://www.primegrid.com/forum_thread.php?id=2389 forum thread. ]]> Mon, 24 Nov 2008 17:20:00 GMT <![CDATA[The Prime Time Challenge]]> http://www.primegrid.com/forum_thread.php?id=2388 http://www.primegrid.com/forum_thread.php?id=2388 Sat, 15 Nov 2008 17:15:00 GMT <![CDATA[The Prime Time Challenge]]> http://www.primegrid.com/forum_thread.php?id=2387 http://www.primegrid.com/forum_thread.php?id=2387 Fri, 14 Nov 2008 21:00:00 GMT <![CDATA[The Prime Time Challenge]]> http://www.primegrid.com/forum_thread.php?id=2386 http://www.primegrid.com/forum_thread.php?id=2386 Prime Time Challenge (14-16 November 2008). The initiation process is already warming up as the load increases on the Proth Prime Search (LLR) in advance of the start. We are approaching the "reportable" level in Chris Caldwell's The Largest Known Primes Database! Come help us reach it and find a prime for yourself. For more information, please see this forum thread. ]]> Thu, 13 Nov 2008 18:00:00 GMT <![CDATA[The Prime Time Challenge]]> http://www.primegrid.com/forum_thread.php?id=2385 http://www.primegrid.com/forum_thread.php?id=2385 The Largest Known Primes Database! The Challenge will highlight PrimeGrid's newest project, the Proth Prime Search. For more information, please see this forum thread. ]]> Sun, 09 Nov 2008 04:30:00 GMT <![CDATA[Preparing for the Prime Time Challenge]]> http://www.primegrid.com/forum_thread.php?id=2384 http://www.primegrid.com/forum_thread.php?id=2384 this post if you are interested. ]]> Sat, 01 Nov 2008 03:30:00 GMT <![CDATA[The Prime Time Challenge]]> http://www.primegrid.com/forum_thread.php?id=2383 http://www.primegrid.com/forum_thread.php?id=2383 PrimeGrid's Challenge series continues with the Prime Time Challenge (14-16 November 2008). It's high time we initiated the new server and what better way to do it than with a Challenge. Also, it's time to return to the thrill of finding primes...and for that, we turn to PrimeGrid's newest project, the Proth Prime Search. Currently, these tests are rather short so this will also give us a good opportunity to "stress" test and fine tune the new server. The Proth Prime Search is slowly working its way up to the "reportable" prime level in Chris Caldwell's The Largest Known Primes Database! So please come join us as we initiate the new server and bring the Proth Prime Search to the "reportable" prime level. For more information, please see this forum thread. ]]> Fri, 31 Oct 2008 04:00:00 GMT <![CDATA[New server is live]]> http://www.primegrid.com/forum_thread.php?id=2382 http://www.primegrid.com/forum_thread.php?id=2382
The first minutes seem promising, and the speed has improved significantly. We'll keep you posted.

Big thanks for Willy for his work on the servers, and to all donators who helped make this server a reality! ]]> Mon, 27 Oct 2008 20:30:00 GMT <![CDATA[Scheduled downtime - new server installation!]]> http://www.primegrid.com/forum_thread.php?id=2381 http://www.primegrid.com/forum_thread.php?id=2381 Thu, 23 Oct 2008 18:10:00 GMT <![CDATA["Optimal" sieve depth reached!]]> http://www.primegrid.com/forum_thread.php?id=2380 http://www.primegrid.com/forum_thread.php?id=2380 forum post. ]]> Fri, 03 Oct 2008 16:50:00 GMT <![CDATA[Planned outage]]> http://www.primegrid.com/forum_thread.php?id=2379 http://www.primegrid.com/forum_thread.php?id=2379 Wed, 01 Oct 2008 17:15:00 GMT <![CDATA[10P milestone reached at PSP Sieve!]]> http://www.primegrid.com/forum_thread.php?id=2378 http://www.primegrid.com/forum_thread.php?id=2378 forum post. ]]> Tue, 30 Sep 2008 15:05:00 GMT <![CDATA[A new server is in PrimeGrid's future!]]> http://www.primegrid.com/forum_thread.php?id=2377 http://www.primegrid.com/forum_thread.php?id=2377 Back to the Future Challenge has ended. Over 8000 Woodall WU's were completed by 204 teams and 1108 individuals. Congratulations to BOINCstats as the top team and lunarcom as the top individual. Also, thanks to the help of the anonymous donor as well as the hundreds of users who participated in the Challenge, we now have the funds to purchase a new server. For more stats and information, please see this forum post. ]]> Mon, 29 Sep 2008 03:00:00 GMT <![CDATA[Message from Anonymous Donor]]> http://www.primegrid.com/forum_thread.php?id=2376 http://www.primegrid.com/forum_thread.php?id=2376 Back to the Future Challenge, we have a solid green bar on the donation page. Congratulations everyone!!! The matching funds have come in as well as a message from the anonymous donor. A special thank you goes out to this individual for ensuring the continued growth of PrimeGrid. Best of Luck to everyone as this Challenge draws to an end. ]]> Sat, 27 Sep 2008 05:15:00 GMT <![CDATA[The Back to the Future Challenge]]> http://www.primegrid.com/forum_thread.php?id=2375 http://www.primegrid.com/forum_thread.php?id=2375 Back to the Future Challenge. There's still a battle for the top spot with BOINCstats holding off a fierce charge by the Canadians! :) Does either team have something up their sleeves for the last 72 hours? Only time will tell. Overall the Challenge is going well. We are almost to n=5.4M with a goal of 5.5M in sight. Additionally, donations are still being accepted for the new server. Currently, with the matching funds from the private donor, we have reached our goal. Any additional funds will go towards upgrading the server specs. A special thank you to everyone for helping out. Best of Luck in the next 72 hours. ]]> Wed, 24 Sep 2008 19:45:00 GMT <![CDATA[The Back to the Future Challenge]]> http://www.primegrid.com/forum_thread.php?id=2374 http://www.primegrid.com/forum_thread.php?id=2374 Back to the Future Challenge has also made progress in donations for the new server. With seven days left, we have reached 52.8% of the funds needed. With the matching funds offer from the private donor, we need to reach at least 66.1%...the donor will complete the rest. One PrimeGrid user has started her own mini challenge, Krazy Kenzie's Server Challenge. She's just one donor away from success. :) Please check it out and see if you can help her make the "right" decision. ]]> Sat, 20 Sep 2008 18:00:00 GMT <![CDATA[GIMPS set to claim $100,000 EFF award!!!]]> http://www.primegrid.com/forum_thread.php?id=2373 http://www.primegrid.com/forum_thread.php?id=2373 Congratulations to The Great Internet Mersenne Prime Search (GIMPS)! On August 23rd, a UCLA computer discovered the 45th known Mersenne prime, 2^43,112,609-1, a mammoth 12,978,189 digit number! The prime number qualifies for the Electronic Frontier Foundation $100,000 award for discovery of the first 10 million digit prime number. By the way, the second prime discovered less than two weeks later was also more than 10 million digits. It's the the 46th known Mersenne prime, 2^37,156,667-1, and comes in at 11,185,272 digits. For more information, please visit the GIMPS site. ]]> Tue, 16 Sep 2008 16:30:00 GMT <![CDATA[45th and 46th Known Mersenne Primes Found!!!!]]> http://www.primegrid.com/forum_thread.php?id=2372 http://www.primegrid.com/forum_thread.php?id=2372 Congratulations to The Great Internet Mersenne Prime Search (GIMPS)! They have made extraordinary finds within two weeks of each other after going almost two years without a prime. We certainly marvel at this wonderful achievement. They are currently working on finding a suitable press outlet. More details will be announced early next week. The big question...is either one 10 million digits or more to claim the Electronic Frontier Foundation $100,000 award? :) For more information, please visit the GIMPS site. Again, congratulations!!! ]]> Fri, 12 Sep 2008 20:20:00 GMT <![CDATA[The Back to the Future Challenge]]> http://www.primegrid.com/forum_thread.php?id=2371 http://www.primegrid.com/forum_thread.php?id=2371 Back to the Future Challenge. Please come join us as we journey back to PrimeGrid's most successful project so far, the Woodall Prime Search, to help us prepare for the future. A private donor has made an anonymous "matching funds" offer matching all donations 1:1 made from now through the Challenge (13 Sept 18:00 UTC to 27 Sept 18:00 UTC) up to the total amount needed for the new server. For more information, please see this forum thread. ]]> Fri, 12 Sep 2008 19:40:00 GMT <![CDATA[The Back to the Future Challenge]]> http://www.primegrid.com/forum_thread.php?id=2370 http://www.primegrid.com/forum_thread.php?id=2370 PrimeGrid's Challenge series continues with the Back to the Future Challenge. We are very pleased and excited to announce that a private donor has made an anonymous "matching funds" offer. All donations made from now until the end of this Challenge (27 September) will be matched 1:1 (up to the total amount needed for the new server). Please come join us as we journey back to PrimeGrid's most successful project so far, the Woodall Prime Search, to help us prepare for the future. For more information, please see this forum thread. ]]> Sat, 06 Sep 2008 00:00:00 GMT <![CDATA[Prime for 321 Prime Search]]> http://www.primegrid.com/forum_thread.php?id=2369 http://www.primegrid.com/forum_thread.php?id=2369
For more information on the prime, please see this forum thread. ]]> Sun, 31 Aug 2008 06:00:00 GMT <![CDATA[The Dog Days of Summer Challenge]]> http://www.primegrid.com/forum_thread.php?id=2368 http://www.primegrid.com/forum_thread.php?id=2368 forum thread. ]]> Mon, 25 Aug 2008 03:00:00 GMT <![CDATA[The Dog Days of Summer Challenge]]> http://www.primegrid.com/forum_thread.php?id=2367 http://www.primegrid.com/forum_thread.php?id=2367 forum thread. ]]> Sun, 24 Aug 2008 04:00:00 GMT <![CDATA[Server down and back up]]> http://www.primegrid.com/forum_thread.php?id=2366 http://www.primegrid.com/forum_thread.php?id=2366
Update 18:11 UTC: it seems that the power was cut to the building; the servers were forcibly rebooted. I'm checking for stuck system processes now.
Update 18:15 UTC: validator was stuck; it's fixed now. I think everything is running smooth now. ]]> Fri, 22 Aug 2008 17:55:00 GMT <![CDATA[The Dog Days of Summer Challenge]]> http://www.primegrid.com/forum_thread.php?id=2365 http://www.primegrid.com/forum_thread.php?id=2365 Dog Days of Summer Challenge . For more information, please see this forum thread. ]]> Thu, 21 Aug 2008 02:00:00 GMT <![CDATA[Prime for 321 Prime Search]]> http://www.primegrid.com/forum_thread.php?id=2364 http://www.primegrid.com/forum_thread.php?id=2364 Dog Days of Summer Challenge, PrimeGrid's first 321 Prime Search prime has been discovered. Stay tuned for more details. UPDATE: 2008-08-18 We are still awaiting contact with prime finder. ]]> Sat, 16 Aug 2008 02:00:00 GMT <![CDATA[The Dog Days of Summer Challenge]]> http://www.primegrid.com/forum_thread.php?id=2363 http://www.primegrid.com/forum_thread.php?id=2363 forum thread. ]]> Fri, 15 Aug 2008 01:00:00 GMT <![CDATA[The Dog Days of Summer Challenge]]> http://www.primegrid.com/forum_thread.php?id=2362 http://www.primegrid.com/forum_thread.php?id=2362 PrimeGrid's Challenge series continues with the Dog Days of Summer Challenge. Please come join us in ushering an end to the hot sweltering days of summer. A 3 day (22-24 August - 72 hour) Challenge is being offered on PrimeGrid's 321 Prime Search LLR application. For more information, please see this forum thread. ]]> Fri, 08 Aug 2008 01:40:00 GMT <![CDATA[Riesel Sieve project information]]> http://www.primegrid.com/forum_thread.php?id=2361 http://www.primegrid.com/forum_thread.php?id=2361
Basically, the project creator has disappeared. People have been in contact with him, but we haven't heard any resumption date or even if things will resume. For the time being, I'm focusing my efforts on getting the non-BOINC side of the project up, as it is far easier and requires far less resources. We do not have access to any of the databases or we would have been able to restore things even without the project creator.

Our wishes for RS to return as soon as possible. ]]> Thu, 31 Jul 2008 16:00:00 GMT <![CDATA[PSP finds Mega Prime]]> http://www.primegrid.com/forum_thread.php?id=2360 http://www.primegrid.com/forum_thread.php?id=2360 258317*2^5450519+1. It is 1640776 digits long and will rank as the 12th largest known prime. The project has now found 17 primes total. There are only 12 primes left to solve the Prime Sierpinski Problem. For more information, please see this forum post. ]]> Sun, 27 Jul 2008 20:00:00 GMT <![CDATA[Back online]]> http://www.primegrid.com/forum_thread.php?id=2359 http://www.primegrid.com/forum_thread.php?id=2359 this forum thread. ]]> Tue, 22 Jul 2008 06:20:00 GMT <![CDATA[Database issues]]> http://www.primegrid.com/forum_thread.php?id=2358 http://www.primegrid.com/forum_thread.php?id=2358 Mon, 21 Jul 2008 21:00:00 GMT <![CDATA[The Lunar Landing Challenge]]> http://www.primegrid.com/forum_thread.php?id=2357 http://www.primegrid.com/forum_thread.php?id=2357 SETI.Germany as the top team and Banshee as the top individual. For more stats and information, please see this forum post. ]]> Mon, 21 Jul 2008 14:45:00 GMT <![CDATA[The Lunar Landing Challenge]]> http://www.primegrid.com/forum_thread.php?id=2356 http://www.primegrid.com/forum_thread.php?id=2356 forum thread. ]]> Sat, 19 Jul 2008 00:00:00 GMT <![CDATA[The Lunar Landing Challenge]]> http://www.primegrid.com/forum_thread.php?id=2355 http://www.primegrid.com/forum_thread.php?id=2355 forum thread. ]]> Thu, 17 Jul 2008 14:00:00 GMT <![CDATA[The Lunar Landing Challenge]]> http://www.primegrid.com/forum_thread.php?id=2354 http://www.primegrid.com/forum_thread.php?id=2354 forum thread. ]]> Tue, 15 Jul 2008 00:00:00 GMT <![CDATA[WU's lengthened]]> http://www.primegrid.com/forum_thread.php?id=2353 http://www.primegrid.com/forum_thread.php?id=2353 Lunar Landing Challenge, sieve WU's have been lengthened. Credit has been adjusted accordingly. For more information, please see this post. ]]> Mon, 14 Jul 2008 06:00:00 GMT <![CDATA[Database issues]]> http://www.primegrid.com/forum_thread.php?id=2352 http://www.primegrid.com/forum_thread.php?id=2352 Update 5:38 UTC: the database has been brought back online. ]]> Thu, 10 Jul 2008 05:25:00 GMT <![CDATA[Server software upgrade]]> http://www.primegrid.com/forum_thread.php?id=2351 http://www.primegrid.com/forum_thread.php?id=2351 [edit] Upgrade completed way ahead of schedule at 11:40 UTC.

I am upgrading server software, so the project is offline. Estimated time of upgrade completion - 13:00 UTC. After the upgrade is completed, I will update this newspost.

Post any issues you think may be caused by the upgrade to this thread. ]]> Mon, 07 Jul 2008 11:15:00 GMT <![CDATA[The Lunar Landing Challenge]]> http://www.primegrid.com/forum_thread.php?id=2350 http://www.primegrid.com/forum_thread.php?id=2350 PrimeGrid's Challenge series continues with the Lunar Landing Challenge. Please come join us in commemorating the 39th Anniversary of the lunar landing by Apollo 11. A 3 day (18-20 July - 72 hour) Challenge is being offered on PrimeGrid's Prime Sierpinski Project sieve application. For more information, please see this forum thread. ]]> Sun, 06 Jul 2008 14:00:00 GMT <![CDATA[3*2^n-1 switched to +1]]> http://www.primegrid.com/forum_thread.php?id=2349 http://www.primegrid.com/forum_thread.php?id=2349 Sun, 29 Jun 2008 19:20:00 GMT <![CDATA[PrimeGrid's Birthday Challenge]]> http://www.primegrid.com/forum_thread.php?id=2348 http://www.primegrid.com/forum_thread.php?id=2348 L'Alliance Francophone as the top team and Banshee as the top individual. For more stats and information, please see this forum post page. ]]> Fri, 13 Jun 2008 03:00:00 GMT <![CDATA[PrimeGrid's Birthday Challenge]]> http://www.primegrid.com/forum_thread.php?id=2347 http://www.primegrid.com/forum_thread.php?id=2347 24 hour Challenge on the Twin Prime Search. Please check your local time zones to determine your exact Challenge time: 12 June 2008 00:00 UTC to 13 June 2008 00:00 UTC. For more information, please see this forum thread. ]]> Wed, 11 Jun 2008 03:30:00 GMT <![CDATA[PrimeGrid's Birthday Challenge]]> http://www.primegrid.com/forum_thread.php?id=2346 http://www.primegrid.com/forum_thread.php?id=2346 PrimeGrid's Challenge series continues with the Birthday Challenge. Please come join us in celebrating PrimeGrid's 3rd Birthday. A 24 hour Challenge is being offered on PrimeGrid's oldest active application, the Twin Prime Search. Hopefully we'll be able to give PrimeGrid a good present by finding the twin during the Challenge. :) For more information, please see this forum thread. ]]> Sat, 07 Jun 2008 14:15:00 GMT <![CDATA[The Drive for Five Challenge]]> http://www.primegrid.com/forum_thread.php?id=2345 http://www.primegrid.com/forum_thread.php?id=2345 forum post page. ]]> Sun, 01 Jun 2008 14:00:00 GMT <![CDATA[The Drive for Five Challenge]]> http://www.primegrid.com/forum_thread.php?id=2344 http://www.primegrid.com/forum_thread.php?id=2344 Challenge Series page. ]]> Fri, 30 May 2008 01:30:00 GMT <![CDATA[The Drive for Five Challenge]]> http://www.primegrid.com/forum_thread.php?id=2343 http://www.primegrid.com/forum_thread.php?id=2343 sprint this weekend to see if we can get back even or maybe ahead of where we need to be in order to reach 5M by the end of 31 May. For more information, please see this forum post. ]]> Fri, 23 May 2008 12:00:00 GMT <![CDATA[The Drive for Five Challenge]]> http://www.primegrid.com/forum_thread.php?id=2342 http://www.primegrid.com/forum_thread.php?id=2342 forum thread. ]]> Fri, 16 May 2008 00:30:00 GMT <![CDATA[The Drive for Five Challenge]]> http://www.primegrid.com/forum_thread.php?id=2341 http://www.primegrid.com/forum_thread.php?id=2341 forum thread. ]]> Wed, 14 May 2008 00:00:00 GMT <![CDATA[Updated application for TPS subproject - now has a screensaver!]]> http://www.primegrid.com/forum_thread.php?id=2340 http://www.primegrid.com/forum_thread.php?id=2340 For the first time, it also features a screensaver! ]]> Sun, 11 May 2008 14:10:00 GMT <![CDATA[The Drive for Five Challenge]]> http://www.primegrid.com/forum_thread.php?id=2339 http://www.primegrid.com/forum_thread.php?id=2339 PrimeGrid's Challenge series continues. Please come join our effort to reach n=5 million in the 321 Prime Search (3*2^n-1). The Challenge will begin 00:00 UTC, 15 May 2008. For more information, please see this forum thread. ]]> Fri, 09 May 2008 01:40:00 GMT <![CDATA[Problems saving preferences]]> http://www.primegrid.com/forum_thread.php?id=2338 http://www.primegrid.com/forum_thread.php?id=2338 UPDATE: as of 16:00 UTC preferences saving should work. ]]> Wed, 07 May 2008 15:45:00 GMT <![CDATA[Sieve WU lengths increased]]> http://www.primegrid.com/forum_thread.php?id=2337 http://www.primegrid.com/forum_thread.php?id=2337 Wed, 30 Apr 2008 13:55:00 GMT <![CDATA[Workunit deadlines increased]]> http://www.primegrid.com/forum_thread.php?id=2336 http://www.primegrid.com/forum_thread.php?id=2336 Sat, 26 Apr 2008 17:00:00 GMT <![CDATA[Standalone screensaver application published for testing]]> http://www.primegrid.com/forum_thread.php?id=2335 http://www.primegrid.com/forum_thread.php?id=2335
Visit the thread in the forums to find more about it. ]]> Wed, 23 Apr 2008 20:00:00 GMT <![CDATA[Can you survive for 24 hours without your computer?]]> http://www.primegrid.com/forum_thread.php?id=2334 http://www.primegrid.com/forum_thread.php?id=2334
It is obvious that without computers we would find our life extremely difficult, maybe even impossible. If they disappeared for just one day, would we be able to cope?

Be part of one of the biggest global experiments ever to take place on the Internet. The idea behind Shutdown Day is to find out how many people can go without a computer for one whole day, and what will happen if we all participate!

Shutdown your computer on 03 May 2008 and find out! Visit shutdownday.org and join the campaign!

(And before you ask - no, PrimeGrid server isn't going down on that day) ]]> Wed, 23 Apr 2008 11:00:00 GMT <![CDATA[Mega Prime for 321 Search]]> http://www.primegrid.com/forum_thread.php?id=2333 http://www.primegrid.com/forum_thread.php?id=2333 3*24235414-1
The prime is 1,274,988 digits long and enters The Largest Known Primes Database ranked 14th overall. This is 321 Search's first mega prime and 11th prime overall. It is the second largest found mega-digit prime using LLR.
The discovery was made by Dylan Bennett of Canada using an Intel C2D @ 1.66 GHz with 2GB RAM. This computer took almost 15 hours and 30 minutes to complete the primality test.
For more details, please see the official announcement. Decimal representation of the number is also available. ]]> Fri, 18 Apr 2008 15:05:00 GMT <![CDATA[Mega Prime for 321 Search]]> http://www.primegrid.com/forum_thread.php?id=2332 http://www.primegrid.com/forum_thread.php?id=2332 Thu, 17 Apr 2008 01:40:00 GMT <![CDATA[Updated statistics for prime finders]]> http://www.primegrid.com/forum_thread.php?id=2331 http://www.primegrid.com/forum_thread.php?id=2331 prime finder statistics page, which now counts primes find in all subprojects. The prime numbers are assigned a score which differs according to prime number size, so a giant Woodall prime is "worth" more than a smaller TPS prime.
The next step in improving statistics is to show the participants all the primes that have been found, which isn't yet available in the current version, but is coming soon. ]]> Mon, 14 Apr 2008 18:30:00 GMT <![CDATA[Project Staging Area]]> http://www.primegrid.com/forum_thread.php?id=2330 http://www.primegrid.com/forum_thread.php?id=2330 forum thread. ]]> Mon, 14 Apr 2008 14:00:00 GMT <![CDATA[PSP finds Mega Prime]]> http://www.primegrid.com/forum_thread.php?id=2329 http://www.primegrid.com/forum_thread.php?id=2329 265711*2^4858008+1 (1462412 digits long). The project has now found 16 primes total. There are only 13 primes left to solve the Prime Sierpinski Problem. For more information, please see this forum thread. ]]> Thu, 10 Apr 2008 17:40:00 GMT <![CDATA[Up and running again]]> http://www.primegrid.com/forum_thread.php?id=2328 http://www.primegrid.com/forum_thread.php?id=2328 the forum thread. ]]> Wed, 26 Mar 2008 19:00:00 GMT <![CDATA[PrimeGrid Database Issues]]> http://www.primegrid.com/forum_thread.php?id=2327 http://www.primegrid.com/forum_thread.php?id=2327 forum thread. ]]> Sat, 22 Mar 2008 18:15:00 GMT <![CDATA[The Ides of March Challenge is Complete]]> http://www.primegrid.com/forum_thread.php?id=2326 http://www.primegrid.com/forum_thread.php?id=2326 forum post. ]]> Sun, 16 Mar 2008 04:00:00 GMT <![CDATA[The Ides of March Challenge Update]]> http://www.primegrid.com/forum_thread.php?id=2325 http://www.primegrid.com/forum_thread.php?id=2325 forum post. ]]> Sat, 15 Mar 2008 12:00:00 GMT <![CDATA[The Ides of March Challenge Update]]> http://www.primegrid.com/forum_thread.php?id=2324 http://www.primegrid.com/forum_thread.php?id=2324 forum thread. ]]> Fri, 14 Mar 2008 14:00:00 GMT <![CDATA[The Ides of March Challenge Update]]> http://www.primegrid.com/forum_thread.php?id=2323 http://www.primegrid.com/forum_thread.php?id=2323 forum thread. ]]> Wed, 12 Mar 2008 15:00:00 GMT <![CDATA[The Ides of March Challenge]]> http://www.primegrid.com/forum_thread.php?id=2322 http://www.primegrid.com/forum_thread.php?id=2322 forum thread. ]]> Sat, 08 Mar 2008 14:15:00 GMT <![CDATA[64bit Linux sr2sieve]]> http://www.primegrid.com/forum_thread.php?id=2321 http://www.primegrid.com/forum_thread.php?id=2321 forum post. ]]> Sun, 02 Mar 2008 15:00:00 GMT <![CDATA[Upcoming Projects]]> http://www.primegrid.com/forum_thread.php?id=2320 http://www.primegrid.com/forum_thread.php?id=2320 forum thread. ]]> Wed, 27 Feb 2008 05:30:00 GMT <![CDATA[Problems with 64bit Windows PSP Sieve fixed]]> http://www.primegrid.com/forum_thread.php?id=2319 http://www.primegrid.com/forum_thread.php?id=2319 Wed, 20 Feb 2008 18:30:00 GMT <![CDATA[Problems with 64bit Windows PSP sieve application]]> http://www.primegrid.com/forum_thread.php?id=2318 http://www.primegrid.com/forum_thread.php?id=2318 Tue, 19 Feb 2008 13:15:00 GMT <![CDATA[64bit Linux gcwsieve]]> http://www.primegrid.com/forum_thread.php?id=2317 http://www.primegrid.com/forum_thread.php?id=2317 the forum thread. ]]> Mon, 18 Feb 2008 10:15:00 GMT <![CDATA[End of the life cycle of primegen application]]> http://www.primegrid.com/forum_thread.php?id=2316 http://www.primegrid.com/forum_thread.php?id=2316
We suggest participants running primegen exclusively also select an additional subproject for future processing. Sieve subprojects are very similar to primegen in size, so it is probably a good choice. Once there are no more primegen work to send, we will update project for such participants to select sieve subprojects. ]]> Fri, 15 Feb 2008 15:23:00 GMT <![CDATA[Unscheduled outage]]> http://www.primegrid.com/forum_thread.php?id=2315 http://www.primegrid.com/forum_thread.php?id=2315 Update 14:22 UTC: We're back up. ]]> Thu, 31 Jan 2008 14:15:00 GMT <![CDATA[TPS work available again]]> http://www.primegrid.com/forum_thread.php?id=2314 http://www.primegrid.com/forum_thread.php?id=2314 Thu, 10 Jan 2008 08:15:00 GMT <![CDATA[Record breaking Woodall prime]]> http://www.primegrid.com/forum_thread.php?id=2313 http://www.primegrid.com/forum_thread.php?id=2313 3752948*23752948-1
The prime is 1,129,757 digits long and enters The Largest Known Primes Database ranked 1st for Woodall primes and 13th overall. It's the first found mega-digit prime using LLR.
The discovery was made by Matthew J. Thompson of the United States using an Intel P4 @ 2.8 GHz with 512MB RAM. This computer took almost 15 hours and 11 minutes to complete the primality test. ]]> Sat, 29 Dec 2007 21:05:00 GMT <![CDATA[1 million digit prime]]> http://www.primegrid.com/forum_thread.php?id=2312 http://www.primegrid.com/forum_thread.php?id=2312 Woodall prime which is over 1 million digits long. It is the biggest Woodall prime ever discovered, and 13th biggest known prime of any kind. Stay tuned for more details. ]]> Fri, 28 Dec 2007 20:30:00 GMT <![CDATA[Code upgrade]]> http://www.primegrid.com/forum_thread.php?id=2311 http://www.primegrid.com/forum_thread.php?id=2311 Sun, 16 Dec 2007 15:30:00 GMT <![CDATA[Scheduled downtime]]> http://www.primegrid.com/forum_thread.php?id=2310 http://www.primegrid.com/forum_thread.php?id=2310 Sun, 09 Dec 2007 16:00:00 GMT <![CDATA[New subproject available]]> http://www.primegrid.com/forum_thread.php?id=2309 http://www.primegrid.com/forum_thread.php?id=2309 As usual, you can choose to crunch work for this project by visiting your project preferences page. Supported platforms: 32bit Linux & Windows. ]]> Wed, 05 Dec 2007 17:45:00 GMT <![CDATA[Unexpected outage (resolved)]]> http://www.primegrid.com/forum_thread.php?id=2308 http://www.primegrid.com/forum_thread.php?id=2308 Update: the issue has been resolved at 8:57 UTC. ]]> Wed, 05 Dec 2007 08:13:00 GMT <![CDATA[Automatic reporting to the Prime Pages available]]> http://www.primegrid.com/forum_thread.php?id=2307 http://www.primegrid.com/forum_thread.php?id=2307 project preferences page and enter your data. ]]> Tue, 30 Oct 2007 09:45:00 GMT <![CDATA[Backend code upgrade]]> http://www.primegrid.com/forum_thread.php?id=2306 http://www.primegrid.com/forum_thread.php?id=2306 Sat, 27 Oct 2007 20:00:00 GMT <![CDATA[Linux LLR available!]]> http://www.primegrid.com/forum_thread.php?id=2305 http://www.primegrid.com/forum_thread.php?id=2305 Sun, 14 Oct 2007 12:15:00 GMT <![CDATA[Prime Sierpinski Project sieve available]]> http://www.primegrid.com/forum_thread.php?id=2304 http://www.primegrid.com/forum_thread.php?id=2304 the Prime Sierpinski Problem. Windows 32bit and 64bit versions are supported. As usual, you can choose to crunch work for this project by visiting your project preferences page. ]]> Sat, 13 Oct 2007 14:15:00 GMT <![CDATA[LLR Cullen percentage reporting bug fixed]]> http://www.primegrid.com/forum_thread.php?id=2303 http://www.primegrid.com/forum_thread.php?id=2303 Sun, 30 Sep 2007 16:15:00 GMT <![CDATA[64bit sieving application available]]> http://www.primegrid.com/forum_thread.php?id=2302 http://www.primegrid.com/forum_thread.php?id=2302 Sat, 29 Sep 2007 15:30:00 GMT <![CDATA[Cullen/Woodall Sieve available]]> http://www.primegrid.com/forum_thread.php?id=2301 http://www.primegrid.com/forum_thread.php?id=2301 Supported platforms: Windows 2000/XP/2003/Vista. ]]> Sat, 15 Sep 2007 18:35:00 GMT <![CDATA[Record Woodall prime number found... again!]]> http://www.primegrid.com/forum_thread.php?id=2300 http://www.primegrid.com/forum_thread.php?id=2300 http://primes.utm.edu/primes/) ranked 1st for Woodall primes and 25th overall.

The discovery was made by Stephen Kohlman of Canada using an Intel C2D 6300 @ 1.86 GHz with 1 GB RAM. This computer took a little over 5 hours and 41 minutes to test using the LLR program. Stephen is a member of Canada team. ]]> Mon, 03 Sep 2007 15:00:00 GMT <![CDATA[Leaving to Geneva]]> http://www.primegrid.com/forum_thread.php?id=2299 http://www.primegrid.com/forum_thread.php?id=2299 Mon, 03 Sep 2007 07:25:00 GMT <![CDATA[Message to participant "Owner"]]> http://www.primegrid.com/forum_thread.php?id=2298 http://www.primegrid.com/forum_thread.php?id=2298 Sat, 25 Aug 2007 15:15:00 GMT <![CDATA[Network maintenance]]> http://www.primegrid.com/forum_thread.php?id=2297 http://www.primegrid.com/forum_thread.php?id=2297 Sun, 19 Aug 2007 16:30:00 GMT <![CDATA[Record Woodall prime number found]]> http://www.primegrid.com/forum_thread.php?id=2296 http://www.primegrid.com/forum_thread.php?id=2296 2013992*22013992-1 The prime is 606279 digits long and enters The Largest Known Primes Database (http://primes.utm.edu/primes/) ranked 1st for Woodall primes and 37th overall.

The discovery was made by Lasse Mejling Andersen of Denmark using an Intel Celeron 2.80 GHz with 512 MB RAM. This machine took a little over 3 hours and 27 minutes to test using the LLR program.

For more details, please see here. ]]> Thu, 09 Aug 2007 18:00:00 GMT <![CDATA[Biggest ever Woodall prime discovered!]]> http://www.primegrid.com/forum_thread.php?id=2295 http://www.primegrid.com/forum_thread.php?id=2295 the biggest Woodall prime ever discovered. More information will follow up later. ]]> Wed, 08 Aug 2007 05:56:00 GMT <![CDATA[Validation suspended]]> http://www.primegrid.com/forum_thread.php?id=2294 http://www.primegrid.com/forum_thread.php?id=2294 Mon, 06 Aug 2007 12:20:00 GMT <![CDATA[Statistics moved]]> http://www.primegrid.com/forum_thread.php?id=2293 http://www.primegrid.com/forum_thread.php?id=2293 Sat, 04 Aug 2007 19:30:00 GMT <![CDATA[Maintenance extended]]> http://www.primegrid.com/forum_thread.php?id=2292 http://www.primegrid.com/forum_thread.php?id=2292 Fri, 03 Aug 2007 21:30:00 GMT <![CDATA[Shutdown for maintenance]]> http://www.primegrid.com/forum_thread.php?id=2291 http://www.primegrid.com/forum_thread.php?id=2291 Thu, 02 Aug 2007 14:59:05 GMT <![CDATA[New subproject added]]> http://www.primegrid.com/forum_thread.php?id=2290 http://www.primegrid.com/forum_thread.php?id=2290
It is now possible to choose the subprojects you would like to run in project preferences page. Please note that when you are using account managers your choice may be reset when changing resource share allocation. ]]> Tue, 03 Jul 2007 17:16:20 GMT <![CDATA[Twin Prime Search progress]]> http://www.primegrid.com/forum_thread.php?id=2289 http://www.primegrid.com/forum_thread.php?id=2289 this thread for more information. ]]> Fri, 15 Jun 2007 14:02:48 GMT <![CDATA[10 million workunits sent]]> http://www.primegrid.com/forum_thread.php?id=2288 http://www.primegrid.com/forum_thread.php?id=2288
The workunit was crunched by the computer owned by user Strelnieks. Congratulations! ]]> Wed, 06 Jun 2007 17:39:59 GMT