Skip to main content

PrimeGrid

Syndikovať obsah PrimeGrid
Aktualizácie: pred 18 hod 34 min

And Another SR5 Mega Prime!

Ut, 31.03.2020 - 16:55
On 16 March 2020, 08:21:46, PrimeGrid’s Sierpinski/Riesel Base 5 Problem project eliminated k=207494 by finding the mega prime: 207494*5^3017502-1 The prime is 2,109,149 digits long and enters Chris Caldwell's “The Largest Known Primes Database” ranked 75th overall and is the largest known base 5 prime. 63 k’s now remain in the Riesel Base 5 problem. The discovery was made by Todd Pickering (EXT64) of Germany using an the United States using an AMD EPYC 7601 32-Core Processor with 126GB RAM, running Linux Ubuntu. This computer took about 1 day, 17 hours, 59 minutes to complete the primality test using LLR. Todd Pickering is a member of the [H]ard|OCP team. The prime was verified internally using an Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz with 32GB RAM, running Linux Debian. For more details, please see the official announcement.
Kategórie: Novinky z projektov

Another SR5 Mega Prime!

Ut, 31.03.2020 - 16:49
On 12 March 2020, 19:16:51 UTC, PrimeGrid’s Sierpinski/Riesel Base 5 Problem project eliminated k=238694 by finding the mega prime: 238694*5^2979422-1 The prime is 2,082,532 digits long and enters Chris Caldwell's “The Largest Known Primes Database” ranked 76th overall and is the largest known base 5 prime. 64 k’s now remain in the Riesel Base 5 problem. The discovery was made by Chris Howell (Khali) of the United States using an Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz with 32GB RAM, running Microsoft Windows 10 Professional x64 Edition. This computer took about 5 hours, 56 minutes to complete the primality test using LLR. Chris Howell is a member of the Crunching@EVGA team. The prime was verified on 13 March 2020, 21:25:52 UTC by Yuki Yoshigoe (SAKAGE@AMD@jisaku) of Japan using an AMD Ryzen Threadripper 3970X 32-Core Processor with 128GB RAM, running Microsoft Windows 10 Professional x64 Edition. This computer took about 1 day, 5 hours, 24 minutes to complete the primality test using LLR. Yuki Yoshigoe is a member of the Team 2ch team. For more details, please see the official announcement.
Kategórie: Novinky z projektov

SR5 Mega Prime!

Ut, 31.03.2020 - 16:40
On 9 March 2020, 21:32:46, PrimeGrid’s Sierpinski/Riesel Base 5 Problem project eliminated k=146264 by finding the mega prime: 146264*5^2953282-1 The prime is 2,064,261 digits long and enters Chris Caldwell's “The Largest Known Primes Database” ranked 74th overall and is the largest known base 5 prime. 65 k’s now remain in the Riesel Base 5 problem. The discovery was made by Wolfgang Schwieger (DeleteNull) of Germany using an Intel(R) Core(TM) i5-8600K CPU @ 3.60GHz with 8GB RAM, running Microsoft Windows 10 Professional x64 Edition. This computer took about 6 hours, 25 minutes to complete the primality test using LLR. Wolfgang Schwieger is a member of the SETI.Germany team. The prime was verified internally using an Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz with 32GB RAM, running Linux Debian. For more details, please see the official announcement.
Kategórie: Novinky z projektov