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
- Gary - Mersenne/CRUS admin - results
- Odicin - scripts
- rebirther - SRBase admin
- Riesel Base: 397/1031 proven (25.05.2019)
- Sierpinski Base: 388/1032 proven (29.09.2019)
216 unstarted bases (10.12.2019)
- non AVX AMD/Intel CPU 2.3Ghz+
- Recommended: AVX,AVX2/FMA3 compatible AMD/Intel CPU 2.3Ghz+, HT off
User of the day
A member of the UK Boinc Team supporting SRBase.
Apart from computing my interests are reading (mostly old style Sc-Fi), music, countryside walking...
SRBase - 5 years review
The project has passed the fifth year.
Compared with last years the following process was made:
2014-2015 - 87M WUs processed, 1 base solved, 314 bases unstarted
2015-2016 - 88M WUs processed, 5 bases solved, 297 bases unstarted
2016-2017 - 99M WUs processed, 5 bases solved, 282 bases unstarted
2017-2018 - 75M WUs processed, 1 base solved, 264 bases unstarted
2018-2019 - 22M WUs processed, 6 bases solved, 218 bases unstarted
in total - 371M WUs processed, 18 bases solved, 218 bases unstarted
Iam waiting for the new goals 2020, all goals for 2019 were reached.
7 Dec 2019, 12:34:36 UTC
base S872 Megaprime
On 27th of October, SrTiger, a member of the team Gridcoin has found a megaprime 94*872^397354+1 for base S872. The prime has 1.168.428 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database.
30 Nov 2019, 11:53:15 UTC
short server outage tomorrow (done)
To install some important updates the server will be offline for less than a hour.
6 Nov 2019, 18:19:51 UTC
base S743 proven
On 15th of June, Doug, a member of the team Gridcoin found the last prime for base S743.
The prime 10*743^285478+1 has 819606 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database.
27 Jun 2019, 16:42:31 UTC
base S780 proven
On 02th of June, CharityEngine2, a member of the team Gridcoin found the last prime for base S780.
The prime 43*780^205685+1 has 594863 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database.
26 Jun 2019, 15:18:35 UTC
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