Free-DC
02-24-2016, 06:05 PM
On 16 February 2016, 16:45:20 UTC, PrimeGrid’s Generalized Fermat Prime Search found the Generalized Fermat mega prime: 1415198^262144+1 (https://primes.utm.edu/primes/page.php?id=121187) The prime is 1,612,400 digits long and enters Chris Caldwell's The Largest Known Primes Database (http://primes.utm.edu/primes) ranked 5th for Generalized Fermat primes and 43rd overall. The discovery was made by Frank Matillek (boss (http://www.primegrid.com/show_user.php?userid=96592)) of Germany using an NVIDIA GeForce GTX 660 Ti in an Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz with 4GB RAM, running Windows 7 Ultimate. This GPU took about 53 minutes to probable prime (PRP) test with GeneferOCL3. Frank is a member of the SETI.Germany (http://www.primegrid.com/team_display.php?teamid=11) team. The prime was verified on 16 February 2016, 17:01:20 UTC by Alan Kong (Wingless Wonder (http://www.primegrid.com/show_user.php?userid=186381)) of the United States using an NVIDIA GeForce GTX Titan Black in an Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz with 32GB RAM, running Windows 10 Professional. This GPU took 30 minutes to probable prime (PRP) test with GeneferOCL3. Alan is a member of the AMD Users (http://www.primegrid.com/team_display.php?teamid=14) team. For more details, please see the official announcement (http://www.primegrid.com/download/GFN-1415198_262144.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=6658)
More... (http://www.primegrid.com/forum_thread.php?id=6658)