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06-28-12, 12:37 PM
On 15 Jun 2012, 9:27:36 UTC, PrimeGrid’s Generalized Fermat Prime Search found the largest known Generalized Fermat mega prime: 341112^524288+1 (http://primes.utm.edu/primes/page.php?id=107930)The prime is 2,900,832 digits long and enters Chris Caldwell's The Largest Known Primes Database (http://primes.utm.edu/primes) ranked 1st for Generalized Fermat primes and 11th overall.The discovery was made by Peyton Hayslette (Peyton Hayslette (http://www.primegrid.com/show_user.php?userid=93011)) of the United States using an NVIDIA GeForce GTX 560 Ti in an Intel Core i5-2500K @ 3.30GHz system with 16GB RAM, running 64 bit Windows 7 Ultimate. This GPU took 3 hours 48 minutes to probable prime (PRP) test with GeneferCUDA. Peyton is a member of the North Carolina (http://www.primegrid.com/team_display.php?teamid=3813) team.The prime was verified by Rob Bosma (Cow_tipping (http://www.primegrid.com/show_user.php?userid=23600)) of the Netherlands using an NVIDIA GeForce GTX 580 in an Intel Core i7 920 @ 2.67GHz with 16GB RAM, running 64 bit Windows 7 Ultimate. This GPU took 2 hours 26 minutes to probable prime (PRP) test with GeneferCUDA. Rob is a member of the Dutch Power Cows (http://www.primegrid.com/team_display.php?teamid=103) team.For more details, please see the official announcement (http://www.primegrid.com/download/GFN-341112_524288.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=4440)
More... (http://www.primegrid.com/forum_thread.php?id=4440)