On 10 August 2016, 19:21:20 UTC, PrimeGrid’s Generalized Fermat Prime Search found the Generalized Fermat mega prime: 1828858^262144+1 The prime is 1,641,593 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 5th for Generalized Fermat primes and 43rd overall. The discovery was made by Brook Harste (brinktastee) of the United States using an NVIDIA GeForce GTX 980 Ti in an Intel(R) Core(TM) i7-3820 CPU @ 3.60GHz with 16GB RAM, running Microsoft Windows 10 Professional. This GPU took about 17 minutes to probable prime (PRP) test with GeneferOCL4. Brook is a member of the Aggie The Pew team. The prime was verified on 10 August 2016, 21:06:33 UTC by Frank Matillek (boss) 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 Microsoft Windows 10 Professional. This GPU took about 39 minutes to probable prime (PRP) test with GeneferOCL4. Frank is a member of the SETI.Germany team. For more details, please see the official announcement.

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