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Difference between revisions of "27121 Search"
(general clean up; correct dead links & grammar) |
(corrections to clarify info prior to PrimeGrid collaboration) |
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| − | '''27121 Search''' was a [[Distributed computing]] project | + | '''27121 Search''' was a [[Distributed computing]] project that started on 2005-03-01 to search for [[prime]]s of the form {{Kbn|27|n}}. The project partnered with [[PrimeGrid]] on 2009-02-13 to additionally search for primes of the form {{Kbn|+|27|n}} and {{Kbn|±|121|n}}. |
The 27121 site featured a reservation system that made it easy to use PRPnet to reserve tests directly from the [https://web.archive.org/web/20220115151556/http://prpnet.primegrid.com:12006/ PrimeGrid server]. PRPnet used [[LLR]] or [[PFGW]] for testing and reported results back to [[PrimeGrid]]. | The 27121 site featured a reservation system that made it easy to use PRPnet to reserve tests directly from the [https://web.archive.org/web/20220115151556/http://prpnet.primegrid.com:12006/ PrimeGrid server]. PRPnet used [[LLR]] or [[PFGW]] for testing and reported results back to [[PrimeGrid]]. | ||
==Results== | ==Results== | ||
| − | '''27121 Search''' found | + | '''27121 Search''' found 5 top-5000 primes as reported to [[The Prime Pages]] by itself before partnering with [[PrimeGrid]]. Their largest prime was {{Kbn|27|1253870}}, which was found on 2008-06-29 and weighed in at 377,454 digits. |
==See also== | ==See also== | ||
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==External links== | ==External links== | ||
| + | *[https://web.archive.org/web/20081006234508/https://12121.vocabulate.com/27k/ 27121search] | ||
*[http://www.primegrid.com/forum_thread.php?id=1229 PrimeGrid forum] | *[http://www.primegrid.com/forum_thread.php?id=1229 PrimeGrid forum] | ||
[[Category:Distributed computing project]] | [[Category:Distributed computing project]] | ||
Revision as of 21:24, 15 April 2025
27121 Search was a Distributed computing project that started on 2005-03-01 to search for primes of the form 27•2n-1. The project partnered with PrimeGrid on 2009-02-13 to additionally search for primes of the form 27•2n+1 and 121•2n±1.
The 27121 site featured a reservation system that made it easy to use PRPnet to reserve tests directly from the PrimeGrid server. PRPnet used LLR or PFGW for testing and reported results back to PrimeGrid.
Results
27121 Search found 5 top-5000 primes as reported to The Prime Pages by itself before partnering with PrimeGrid. Their largest prime was 27•21253870-1, which was found on 2008-06-29 and weighed in at 377,454 digits.
