World Record GFN Prime!
On 20 Jun 2012, 4:26:47 UTC, PrimeGrid’s Generalized Fermat Prime Search found the largest known Generalized Fermat mega prime: 356926^524288+1 The prime is 2,911,151 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 1st for Generalized Fermat primes and 11th overall. The discovery was made by (bherbihyewrbg) of Japan using an NVIDIA GeForce GT 640M in an Intel Core i7-3610QM CPU @ 2.30GHz with 8GB RAM, running 64 bit Windows 7 Professional. This GPU took 17 hours 49 minutes to probable prime (PRP) test with GeneferCUDA. (bherbihyewrbg) is a member of the Team 2ch team. The prime was verified by Tim McArdle (Bauerwulf) of the United States using an Intel Core i7-2600 CPU @ 3.40GHz with 8GB RAM, running 64 bit Windows Server 2008 . This computer took 43 hours 46 minutes to probable prime (PRP) test with GenefX64. Tim is a member of the Don't Panic Labs team. For more details, please see the official announcement.

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