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02-13-12, 10:20 AM
On 12 Feb 2012, 3:48:23 UTC, PrimeGrid’s Generalized Fermat Prime Search found the mega prime: 676754^262144+1 (http://primes.utm.edu/primes/page.php?id=104592)The prime is 1,528,413 digits long and enters Chris Caldwell's The Largest Known Primes Database (http://primes.utm.edu/primes) ranked 2nd for Generalized Fermat Primes (http://primes.utm.edu/top20/page.php?id=12) and 23rd overall. This is the 2nd Top 25 prime in 3 weeks. A nice beginning for the new Generalized Fermat Prime Search. The primes are only going to get bigger. :)The discovery was made by Carlos Loureiro of Portugal using an NVIDIA GeForce GTX 550 Ti in an Intel Core i5-2500K @ 3.30GHz system with 4GB RAM, running Windows 7 Ultimate x64. This GPU took about 1 hour 30 minutes to probable prime (PRP) test with GenefCUDA. Carlos is a member of the Blasfemias (http://www.primegrid.com/team_display.php?teamid=2583) team.The PRP was verified on 12 Feb 2012, 8:33:09 UTC, by Peter Verstappen of Australia. Official announcement coming soon.
More... (http://www.primegrid.com/forum_thread.php?id=4068)
More... (http://www.primegrid.com/forum_thread.php?id=4068)