AMDave
09-17-2022, 01:59 PM
GFN 20 Found!
On 9 August 2022, 11:56:02 UTC, PrimeGrid?s Generalized Fermat Prime Search found the Generalized Fermat mega prime:1951734^1048576+1 (https://primes.utm.edu/primes/page.php?id=134298)The prime is 6,595,985 digits long and enters Chris Caldwell's The Largest Known Primes Database (https://primes.utm.edu/primes) ranked 1st for Generalized Fermat primes and 13th overall. This is the second-largest prime found by PrimeGrid, and the second-largest non-Mersenne prime.The discovery was made by Kazuya Tanaka (apophise@jisaku (https://www.primegrid.com/show_user.php?userid=1244456)) of Japan using an NVIDIA GeForce RTX 3080 Ti in an Intel(R) Core(TM) i7-9700K CPU @ 3.60GHz with 64GB RAM, running Microsoft Windows 10 Professional x64 Edition. This GPU took about 1 hour, 2 minutes to complete the probable prime (PRP) test using GeneferOCL5. Kazuya Tanaka is a member of Team 2ch (https://www.primegrid.com/team_display.php?teamid=194).The prime was verified on 10 August 2022, 17:39:14 UTC by Jens Katzur (Landjunge (https://www.primegrid.com/show_user.php?userid=59001)) of Germany using an NVIDIA GeForce RTX 3070 in an Intel(R) Xeon(R) CPU X5675 @ 3.07GHz with 40GB RAM, running Linux Ubuntu. This computer took about 1 hour, 36 minutes to complete the probable prime (PRP) test using GeneferOCL5. Jens Katzur is a member of Planet 3DNow! (https://www.primegrid.com/team_display.php?teamid=499).The PRP was confirmed prime on 11 August 2022 by an AMD Ryzen 9 5950X @3.4GHz, running Linux Mint. This computer took about 51 hours, 52 minutes to complete the primality test using LLR2.For more details, please see the official announcement (https://www.primegrid.com/download/GFN-1951734_1048576.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=9999)
On 9 August 2022, 11:56:02 UTC, PrimeGrid?s Generalized Fermat Prime Search found the Generalized Fermat mega prime:1951734^1048576+1 (https://primes.utm.edu/primes/page.php?id=134298)The prime is 6,595,985 digits long and enters Chris Caldwell's The Largest Known Primes Database (https://primes.utm.edu/primes) ranked 1st for Generalized Fermat primes and 13th overall. This is the second-largest prime found by PrimeGrid, and the second-largest non-Mersenne prime.The discovery was made by Kazuya Tanaka (apophise@jisaku (https://www.primegrid.com/show_user.php?userid=1244456)) of Japan using an NVIDIA GeForce RTX 3080 Ti in an Intel(R) Core(TM) i7-9700K CPU @ 3.60GHz with 64GB RAM, running Microsoft Windows 10 Professional x64 Edition. This GPU took about 1 hour, 2 minutes to complete the probable prime (PRP) test using GeneferOCL5. Kazuya Tanaka is a member of Team 2ch (https://www.primegrid.com/team_display.php?teamid=194).The prime was verified on 10 August 2022, 17:39:14 UTC by Jens Katzur (Landjunge (https://www.primegrid.com/show_user.php?userid=59001)) of Germany using an NVIDIA GeForce RTX 3070 in an Intel(R) Xeon(R) CPU X5675 @ 3.07GHz with 40GB RAM, running Linux Ubuntu. This computer took about 1 hour, 36 minutes to complete the probable prime (PRP) test using GeneferOCL5. Jens Katzur is a member of Planet 3DNow! (https://www.primegrid.com/team_display.php?teamid=499).The PRP was confirmed prime on 11 August 2022 by an AMD Ryzen 9 5950X @3.4GHz, running Linux Mint. This computer took about 51 hours, 52 minutes to complete the primality test using LLR2.For more details, please see the official announcement (https://www.primegrid.com/download/GFN-1951734_1048576.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=9999)