Actualités en direct des projets (non traduites)

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Aliquot sequence 69^70 has terminated!!!



Source

Création : 19 septembre 2022

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...374646 times

Source

Création : 19 septembre 2022

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The results of the ODLK1 project for January-March 2022 have been published.

Application odlk3: 422819 CF ODLK;
Application odlkmax: 486530 CF ODLK.

Yandex.Disk
https://disk.yandex.ru/d/8WxL-T-PzK0E6w
Archive ODLK1_Jan-Mar2022_named.7z
14.5 MB.

Source

Création : 19 septembre 2022

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On 9 August 2022, 11:56:02 UTC, PrimeGrid’s Generalized Fermat Prime Search found the Generalized Fermat mega prime: 1951734^1048576+1 The prime is 6,595,985 digits long and enters Chris Caldwell's The Largest Known Primes Database 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) 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. The prime was verified on 10 August 2022, 17:39:14 UTC by Jens Katzur (Landjunge) 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!. 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.

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Création : 17 septembre 2022

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The sixth challenge of the 2022 Series will be a 3-day challenge celebrating the 196th birthday of the German mathematician Bernhard Riemann. The challenge will be offered on the WW application, beginning 17 September 20:00 UTC and ending 20 September 20:00 UTC. To participate in the Challenge, please select only the Wieferich and Wall-Sun-Sun Prime Search (WW) project in your PrimeGrid preferences section. Issues? Inquiries? Interjections? Join the discussion at https://www.primegrid.com/forum_thread.php?id=9993&nowrap=true#156946

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Création : 14 septembre 2022

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Dear crunchers.

The project was developed a few years ago with an intern and a very limited budget. Despite many project submissions, we did not get any funding. Sometimes we are told that our project is too ambitious, sometimes not enough... It is discouraging! The truth is that the public funding of research in France is extremely low.

Our prototype programs are outdated. At the beginning, I struggled with VMs, then security changes in the Linux kernel started to prevent the application from running properly.

Despite everything and thanks to you (thank you!), we are coming to the end of a computing campaign and the integration of the data will take me a lot of time. The project is obviously not finished and we could still submit many calculations. But today the priority is to analyze and valorize what we already have. I'll go through the last calculations that had problems and see if I can resubmit some tasks, but very soon there will be no more WU.

We have made a lot of progress with little funding, we will continue to share our scientific publications with you. Moreover, we are currently finishing writing an article and I can already tell you that we have developed a way to greatly reduce the calculations of unstable molecules.

See you soon
Kind regards,
Benoit

Source

Création : 29 août 2022