base R235 Megaprime  |
vaughan, a member of the team BOINC@AUSTRALIA found a megaprime for base R235.
The prime 3788*235^455521-1 has 1.080.075 digits and entered the T5k PrimePages.
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| base S52 Megaprime |
Science United found a megaprime for base S52.
The prime 25492*52^638823+1 has 1.096.227 digits and entered the T5k PrimePages.
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| New models published |
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It's my pleasure to announce a new paper based on A@H computations with about 30,000 asteroid models reconstructed from survey photometry. This triples the number of asteroids with a shape model. The paper is available at the Astronomy and Astrophysics journal page: https://www.aanda.org/component/article?access=doi&doi=10.1051/0004-6361/202662316 or at Arxiv: https://arxiv.org/abs/2610.06082. The models are available at Zenodo: https://doi.org/10.5281/zenodo.22812438 and will also be placed in DAMIT: https://damit.cuni.cz. We thank all the volunteers for their contribution! Meanwhile, the amount of available data has increased, so you are now computing updated datasets, including the first photometry from the Vera Rubin Observatory. We are also currently using the project to process synthetic data to be ready to debias results based on the Gaia Data Release 4, which will be available in December 2026.
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| Processing of the square # 71 completed |
Dear participants, processing of the square # 71 is fully completed! The square:
0 1 2 3 4 5 6 7 8 9 A B
1 2 0 4 5 3 8 6 7 B 9 A
3 4 5 0 1 2 9 A B 6 7 8
6 8 7 9 B A 1 0 2 4 3 5
8 7 6 B A 9 2 1 0 5 4 3
9 B A 6 8 7 4 3 5 1 0 2
A 9 B 7 6 8 3 5 4 0 2 1
B A 9 8 7 6 5 4 3 2 1 0
7 6 8 A 9 B 0 2 1 3 5 4
4 5 3 1 2 0 B 9 A 8 6 7
2 0 1 5 3 4 7 8 6 A B 9
5 3 4 2 0 1 A B 9 7 8 6
has 25110 diagonal transversals and 443460340 orthogonal mates which puts it on the 60th place of the rating which included at now 6246 items. Description and results of other studies can be found on Publications page also.
Thank you for project attention, support and donation of CPU time!
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| base S298 Megaprime |
Sightus@CAU, a member of the team Planet 3DNow! found a megaprime for base S298.
The prime 168*298^566667+1 has 1.402.059 digits and entered the T5k PrimePages.
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| Suzuki's Birthday Challenge |
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From October 2 17:00 to October 7 17:00 PrimeGrid will be running a 5 day challenge on the GFN-19 project.
For more information, please see this forum thread.
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| Aliquot sequence 3772368 has terminated!!! |
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| BOINC Games challenge 09/25/2026 04:00 (UTC)-09/28/2026 04:00 (UTC) |
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The project was selected. Good luck everyone!
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| Processing of the square # 70 completed |
Dear participants, processing of the square # 70 is fully completed! The square:
0 1 2 3 4 5 6 7 8 9 A B
1 2 3 4 9 8 B 5 A 0 6 7
3 4 9 0 1 6 5 A B 2 7 8
7 5 8 A 6 3 0 2 4 B 9 1
5 8 A 6 B 4 1 3 9 7 0 2
9 0 1 2 3 7 A B 5 4 8 6
6 B 7 5 8 1 4 0 2 A 3 9
2 3 4 9 0 A 7 8 6 1 B 5
A 6 B 7 5 0 3 9 1 8 2 4
B 7 5 8 A 2 9 1 3 6 4 0
4 9 0 1 2 B 8 6 7 3 5 A
8 A 6 B 7 9 2 4 0 5 1 3
has 25140 diagonal transversals and 435445464 orthogonal mates which puts it on the 61th place of the rating which included at now 6221 items. Description and results of other studies can be found on Publications page also.
Now "high part" of spectra of ODLS-12 looks like this (squares # 66 .. 70 marked by magenta):
Thank you for project attention, support and donation of CPU time!
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| Aliquot sequence 3833886 has terminated!!! |
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| Aliquot sequence 3662904 has terminated!!! |
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| Testing GPU Sieving on Apple silicon Macs |
A test version of the GPU sieving application is now available for Apple silicon Macs (M1 and newer). The cuda-sieve code has been ported to Apple’s Metal GPU API, allowing the integrated GPUs in Apple M-series processors to participate in the sieving work.
This is a new port and has had relatively limited testing, so additional testing across the different generations of Apple silicon would be very helpful. If you have an M1, M2, M3, M4, or newer Mac, please give it a try and let us know how it performs.
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| GPU sieving |
Work has progressed nicely on the GPU sieving apps based on cuda-sieve. Linux and Windows apps are now available for NVIDIA GPUs, with support extended to Maxwell (such as the GTX 970) and newer GPUs with at least 4 GB of GPU memory.
For AMD, the code has been ported using HIP, and a Windows app is now available supporting all RDNA-based GPUs (Radeon RX 5000 series and newer) with at least 4 GB of GPU memory.
If you have a supported GPU, give it a try!
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| Aliquot sequence 3841086 has terminated!!! |
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| Shutdown of LODA BOINC |
Dear LODA BOINC community,
After careful consideration, I have decided to shut down the LODA BOINC project.
When LODA BOINC started, distributed computing was an effective way to search for new LODA programs and mathematical solutions. Recent advances in AI have changed this significantly, and AI-based approaches are now becoming much more effective for this kind of program and formula discovery.
Therefore, I believe it is time to bring the LODA BOINC project to an end. I would like to sincerely thank everyone who contributed computing power and supported LODA BOINC over the years. Your contributions have been greatly appreciated. The LODA programs and results will remain available on GitHub, so the work produced by the project will continue to be accessible.
Thank you for being part of the LODA BOINC community!
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| P72 ECM factor! |
| User Weber462 found a 72-digit prime factor of an XYYXF number using ECM. This is the
largest ECM factor found this year,
and the 31th largest of all time. |
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| Formula BOINC 2026-09-03 16:00 UTC - 2026-09-06 16:00 UTC |
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Thx to get part of it!
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| Server issues resolved |
For the past few days a protection module on our web server was rejecting a large share of incoming requests. It affected not only the website, but also scheduler requests and result uploads, so many of you ran into failed uploads and reports, and pages that loaded only every other try.
The cause has been identified and the module is now switched off. The website, the scheduler and the upload server are all responding normally again.
There is nothing you need to do — the BOINC client retries uploads and reports on its own, so pending results should go through automatically. If a transfer stays stuck, "Retry now" on the Transfers tab will push it along.
We are still working on what set this off in the first place: unusually heavy automated traffic on the project pages. Thank you for your patience.
Radim Vanco (FoxKyong)
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| CUDA-based GPU sieving test |
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A new GPU lattice sieve for NFS, cuda-sieve, was recently released. A new app has been added to NFS@Home to test this. Currently, it's only available for nVidia Ampere or higher GPUs running x86_64 Linux. Once the code stabilizes, additional platforms will be added.
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| Aliquot sequence 3806808 has terminated!!! |
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