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06-06-18, 05:52 PM
On 5 June 2018, 05:24:10 UTC, PrimeGrid’s Generalized Fermat Prime Search found the Generalized Fermat mega prime:5152128^262144+1 (http://primes.utm.edu/primes/page.php?id=125364)The prime is 1,759,508 digits long and enters Chris Caldwell's The Largest Known Primes Database (http://primes.utm.edu/primes) ranked 8th for Generalized Fermat primes and 60th overall.The discovery was made by Rob Gahan (Robish (https://www.primegrid.com/show_user.php?userid=126266)) of Ireland using an NVIDIA GeForce GTX Titan X in an Intel(R) Core(TM) i7-5930K CPU at 3.50GHz with 32GB RAM, running Windows 10 Core Edition. This GPU took about 25 minutes to probable prime (PRP) test with GeneferOCL3. Rob is a member of the Storm (http://www.primegrid.com/team_display.php?teamid=3983) team.The prime was verified on 5 June 2018, 05:43:47 by Aaron Houston Clinton (denim (https://www.primegrid.com/show_user.php?userid=29415)) of the United States using an NVIDIA GeForce GTX 1080 Ti GPU in an Intel(R) Core(TM) i7-6700K CPU at 4.00GHz with 16GB RAM, running Windows 10 Professional Edition. This GPU took about 13 minutes to probable prime (PRP) test with GeneferOCL3. Aaron is a member of the SETI.USA (http://www.primegrid.com/team_display.php?teamid=189) team.The PRP was confirmed prime by an Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz with 16GB RAM, running Microsoft Windows 10 Professional. This computer took about 7 hours 11 minutes to complete the primality test using LLR.For more details, please see the official announcement (http://www.primegrid.com/download/GFN-5152128_262144.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=8088)
More... (http://www.primegrid.com/forum_thread.php?id=8088)