SRBase
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About SRBase

is a mathematical research project that uses Internet-connected computers trying to solve Sierpinski / Riesel Bases up to 1030. You can participate by downloading and running a free program on your computer.

The project is in collaboration with the Mersenne CRUS project.
The server is running on a private computer in a VM.

The invitation code for creating new accounts is pillepalle
You can only create new accounts over the website.

Project people:
  • Gary - CRUS admin - results
  • Odicin - scripts
  • walli - coding/scripts
  • rebirther - SRBase admin
Project status:
  • Riesel Base: 409/1032 proven (23.03.2025)
  • Sierpinski Base: 402/1032 proven (19.02.2025)
    50 unstarted bases (20.04.2025)
    5 bases partially tested (29.08.2024)

About Trial Factoring

is a subproject for GPU Trial Factoring of Mersenne Prime candidates

Project people:
  • rebirther - Admin
  • DeleteNull - coding
  • Prime95 - GIMPS admin / work distribution

Join SRBase

Returning participants

Сообщество

Infos

Published papers

Hardware requirements

  • non AVX AMD/Intel CPU 2.3Ghz+
  • Recommended: AVX,AVX2/FMA3/AVX512 compatible AMD/Intel CPU 2.3Ghz+, HT off

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Пользователь Дня

Профиль пользователя Profile FourOh
Engineer. Dog park enthusiast. Take-out menu collector. Crunching on and off since 2001 (SETI) and 2002 (BOINC) for Team SETI.USA.

News

base S24 - 8 more Megaprimes
Ralfy, a member of the team BOINC Confederation found a megaprime for base S24.
The prime 3526*24^741308+1 has 1.023.166 digits and entered the T5k PrimePages.

Science United found a megaprime for base S24.
The prime 2586*24^744604+1 has 1.027.715 digits and entered the T5k PrimePages.

Moor, a member of the team Planet 3DNow! found a megaprime for base S24.
The prime 4606*24^744714+1 has 1.027.867 digits and entered the T5k PrimePages.

Majo2096, a member of the team Antarctic Crunchers found a megaprime for base S24.
The prime 2164*24^748621+1 has 1.033.259 digits and entered the T5k PrimePages.

[SG-FC] dingdong, a member of the team SETI.Germany found a megaprime for base S24.
The prime 5889*24^748409+1 has 1.032.967 digits and entered the T5k PrimePages.

[AF] Kalianthys, a member of the team L'Alliance Francophone found a megaprime for base S24.
The prime 5889*24^750125+1 has 1.035.335 digits and entered the T5k PrimePages.

[AF>Libristes]IxPo, a member of the team L'Alliance Francophone found a megaprime for base S24.
The prime 3609*24^761179+1 has 1.050.592 digits and entered the T5k PrimePages.

Jeff_Wright, a member of the team Gridcoin found a megaprime for base S24.
The prime 26279*24^773017+1 has 1.066.932 digits and entered the T5k PrimePages. 30 May 2025, 9:20:54 UTC · Комментарий

new ARM apps for TF
Thx to Ian who made this possible!

Both apps are now available for cuda10.2 and 12.2 16 May 2025, 17:54:10 UTC · Комментарий

prst mac app added
The test was successful. Now all prst apps have a mac version. 13 May 2025, 18:43:48 UTC · Комментарий

BOINC Pentathlon - Sprint - 2025 10 May 00:00 (UTC) - 13 May 00:00 (UTC)
good luck everyone and welcome to our new users! 7 May 2025, 13:14:00 UTC · Комментарий

prst mac app test
We have now a mac app to test.

download app

Pls run these very short tests and post the output + specs (CPU + OS) from a local folder.

./prst-boinc -boinc -fermat -check strong "50004228*85^2000+1" ./prst-boinc -boinc -fermat -check strong "50000958*85^2747+1" ./prst-boinc -boinc -check strong "50004228*85^2000+1" ./prst-boinc -boinc -check strong "50000958*85^2747+1" ./prst-boinc -boinc -check strong "12600*85^3491-1" ./prst-boinc -boinc -fermat -check strong "16627592*85^29-1" ./prst-boinc -boinc -fermat -check strong "3224*85^2000-1"



Should be work on 10.15+ 7 May 2025, 5:25:22 UTC · Комментарий
... more

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