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07-12-17, 04:38 PM
On 10 July, 08:34:34 UTC, PrimeGrid’s Generalized Fermat Prime Search found the Generalized Fermat mega prime:46736070^131072+1 (http://primes.utm.edu/primes/page.php?id=123731)The prime is 1,005,277 digits long and enters Chris Caldwell's The Largest Known Primes Database (http://primes.utm.edu/primes) ranked 24th for Generalized Fermat primes and 240th overall.The discovery was made by Tom Greer (tng* (https://www.primegrid.com/show_user.php?userid=66603)) of the United States using an NVidia GeForce GTX 1080 GPU in an Intel(R) Core(TM) i7-6850K CPU at 3.60GHz with 16GB RAM, running Microsoft Windows 10 Professional Edition. This GPU took about 15 minutes to probable prime (PRP) test with GeneferOCL2. Tom is a member of the Sicituradastra. (http://www.primegrid.com/team_display.php?teamid=1596)team.The prime was verified on 11 July 2017, 04:33:58 UTC by Thomas Midle (BoSoxFan86 (https://www.primegrid.com/show_user.php?userid=376897)) of the United States using an AMD Radeon R7 M270 GPU in an Intel(R) Core(TM) i7-5500U CPU @ 2.40Hz with 12GB RAM, running Microsoft Windows 10 Core Edition. This GPU took about 2 hours 7 minutes to probable prime (PRP) test with GeneferOCL2. Thomas is a member of the Gridcoin (http://www.primegrid.com/team_display.php?teamid=4469) team.The PRP was confirmed prime by an Intel(R) Xeon (R) E5-2670 CPU CPU @ 2.60GHz with 32GB RAM, running Linux. This computer took about 15 hours 20 minutes to complete the primality test using LLR.For more details, please see the official announcement (http://www.primegrid.com/download/GFN-46736070_131072.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=7525)
More... (http://www.primegrid.com/forum_thread.php?id=7525)