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GFN-262144 Mega Prime!

Po, 20.11.2017 - 13:38
On 16 November 2017, 15:38:45 UTC, PrimeGrid’s Generalized Fermat Prime Search found the Generalized Fermat mega prime: 3596074^262144+1 The prime is 1,718,572 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 6th for Generalized Fermat primes and 53rd overall. The discovery was made by Howard Gordon ([PST]Howard) of the United Kingdom using a Nvidia GeForce GTX 1060 in an AMD Ryzen 1950X with 32GB RAM, running Microsoft Windows 10 Core Edition. This GPU took about 30 minutes to probable prime (PRP) test with GeneferOCL3. Howard is a member of the PrimeSearchTeam team. Double-checker information will be provided once available. The PRP was confirmed prime by an Intel(R) Core(TM) i5-4670K CPU @ 3.40GHz with 24GB RAM, running Microsoft Windows 7 Professional Edition. This computer took about 10 hours 10 minutes to complete the primality test using multithreaded LLR. For more details, please see the official announcement.
Kategórie: Novinky z projektov

Pierre de Fermat's Birthday Challenge in 12 hours!

Pi, 17.11.2017 - 02:39
In less than 12 hours, PrimeGrid's three day Pierre de Fermat's Birthday Challenge will begin. For the first time ever, this challenge will feature the three smallest Generalized Fermat projects, GFN-15, GFN-16, and GFN-17-Low. Head on over to the the challenge's forum thread for more information and discussion. Good luck!
Kategórie: Novinky z projektov

Announcing: Fewer Announcements!

Ut, 14.11.2017 - 15:38
In 2018, we are changing our policies regarding announcement of significant prime discoveries. We're raising the bar so that announcements once again are something special and not just "the prime of the week." Details and discussion can be found here.
Kategórie: Novinky z projektov

Another PPS-Mega Prime!

Ut, 14.11.2017 - 13:24
On 13 November 2017, 00:26:44 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime: 943*2^3442990+1 The prime is 1,036,447 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 208th overall. The discovery was made by Joshua Charles Campbell (Warp Zero) of Canada using an Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz with 64GB RAM, running Linux. This computer took about 42 minutes to complete the primality test using multithreaded LLR. Joshua is a member of the Canada team. The prime was verified on 13 November 2017, 18:22:32 UTC by Jon Goral ([KWSN]John Galt 007) of the United States using an Intel(R) Core(TM) i7 940 CPU @ 2.93GHz with 24GB RAM, running Microsoft Windows 10. This computer took about 6 hour 76 minutes to complete the primality test using LLR. Jon is a member of The Knights Who Say Ni! team. For more details, please see the official announcement.
Kategórie: Novinky z projektov