AMDave
12-03-2021, 08:00 PM
SR5 Mega Prime Find!
On 8 October 2021, 01:38:53 UTC, PrimeGrid?s Sierpinski/Riesel Base 5 Problem project eliminated k=102818 by finding the mega prime: 102818*5^3440382-1 (https://primes.utm.edu/primes/page.php?id=132817)The prime is 2,404,729 digits long and enters Chris Caldwell's ?The Largest Known Primes Database? (https://primes.utm.edu/primes) ranked 96th overall. 61 k?s now remain in the Riesel Base 5 problem.The discovery was made by Wes Hewitt (emoga (https://www.primegrid.com/show_user.php?userid=316880)) of Canada using an AMD Ryzen 9 5950X 16-Core Processor with 32GB RAM, running Microsoft Windows 10 Professional x64 Edition. This computer took about 1 hour, 29 minutes to complete the primality test using LLR2. Wes Hewitt is a member of TeAm AnandTech (https://www.primegrid.com/team_display.php?teamid=132) team.The prime was verified on 10 October 2021, 20:14 UTC, by an Intel(R) Core(TM) i7-9800X CPU @ 3.80GHz with 32GB of RAM, running CentOS. This computer took 20 hours and 39 minutes to complete the primality test using LLR2.For more details, please see the official announcement (https://www.primegrid.com/download/SR5-102818.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=9807)
On 8 October 2021, 01:38:53 UTC, PrimeGrid?s Sierpinski/Riesel Base 5 Problem project eliminated k=102818 by finding the mega prime: 102818*5^3440382-1 (https://primes.utm.edu/primes/page.php?id=132817)The prime is 2,404,729 digits long and enters Chris Caldwell's ?The Largest Known Primes Database? (https://primes.utm.edu/primes) ranked 96th overall. 61 k?s now remain in the Riesel Base 5 problem.The discovery was made by Wes Hewitt (emoga (https://www.primegrid.com/show_user.php?userid=316880)) of Canada using an AMD Ryzen 9 5950X 16-Core Processor with 32GB RAM, running Microsoft Windows 10 Professional x64 Edition. This computer took about 1 hour, 29 minutes to complete the primality test using LLR2. Wes Hewitt is a member of TeAm AnandTech (https://www.primegrid.com/team_display.php?teamid=132) team.The prime was verified on 10 October 2021, 20:14 UTC, by an Intel(R) Core(TM) i7-9800X CPU @ 3.80GHz with 32GB of RAM, running CentOS. This computer took 20 hours and 39 minutes to complete the primality test using LLR2.For more details, please see the official announcement (https://www.primegrid.com/download/SR5-102818.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=9807)