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GFN-524288 Mega Prime!

So, 11.08.2018 - 15:08
On 4 August 2018, 09:10:53 UTC, PrimeGrid’s Generalized Fermat Prime Search found the Generalized Fermat mega prime: 2312092^524288+1 The prime is 3,336,572 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 2nd for Generalized Fermat primes and 24th overall. The discovery was made by Rob Gahan (Robish) of Ireland using an NVIDIA GeForce GTX 690 in an Intel(R) Core(TM) i7-3930K CPU at 3.20GHz with 12GB RAM, running Windows 10 Professional Edition. This GPU took about 2 hours 36 minutes to probable prime (PRP) test with GeneferOCL5. Rob is a member of the Storm team. The prime was verified on 4 August 2018, 23:28:14 UTC by Naoaki Tokuda (semanterion) of Japan using an NVIDIA Titan V in an Intel(R) Core(TM) i7-4960X CPU @ 3.60GHz with 64GB RAM, running Windows 7 Ultimate Edition. This GPU took about 24 minutes to probable prime (PRP) test with GeneferOCL5. 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 20 hours 55 minutes to complete the primality test using LLR. For more details, please see the official announcement.
Kategórie: Novinky z projektov

Solar Eclipse Challenge

Pi, 10.08.2018 - 17:32
August 11th, 2018 a partial solar eclipse will touch many countries in the Northern Hemisphere. We'll be running a Proth Prime Search (LLR) Challenge to celebrate. The 3 day Challenge starts 10th August, 18:00 UTC and ends 13th August 2018, 18:00 UTC. Work units which are downloaded and completed during the challenge will count towards your challenge score. Many primes are expected to be found. For more information, questions and friendly banter, please join us in this thread.
Kategórie: Novinky z projektov

Yet Another SR5 Mega Prime!

St, 01.08.2018 - 16:12
On 29 July 2018, 11:28:58 UTC, PrimeGrid’s Sierpinski/Riesel Base 5 Problem project eliminated k=66916 by finding the mega prime: 66916*5^2628609-1 The prime is 1,837,324 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 59th overall and is the largest known base 5 prime. 70 k's now remain in the Riesel Base 5 Problem. The discovery was made by Honza Cholt (Honza) of the Czech Republic using an Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz with 32 GB RAM running Microsoft Windows 10 Professional Edition. This computer took about 4 hours 35 minutes to complete the primality test using multithreaded LLR. Honza is a member of the Czech National Team. The prime was verified on 29 July 2018, 15:45:07 UTC by James Krauss (Grebuloner) of the United States using an Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz with 16 GB RAM running Microsoft Windows 10 Professional Edition. This computer took about 5 hours 38 minutes to complete the primality test using multithreaded LLR. James is a member of The Knights Who Say Ni! team. For more details, please see the official announcement.
Kategórie: Novinky z projektov