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Difference between revisions of "12121 Search"
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| − | + | '''12121 Search''' was a [[Distributed computing]] project that started on 2004-05-24 to search for [[prime]]s of the form {{Kbn|121|n}}. The project partnered with [[PrimeGrid]] on 2009-02-13 to additionally search for primes of the form {{Kbn|+|121|n}} and {{Kbn|±|27|n}}. | |
| − | The 12121 site | + | The 12121 site featured a reservation system that made it easy to use PRPnet to reserve tests directly from the [https://web.archive.org/web/20210415051133/http://prpnet.primegrid.com:12001/ PrimeGrid server]. PRPnet used [[LLR]] or [[PFGW]] for testing and reported results back to [[PrimeGrid]]. |
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==Results== | ==Results== | ||
| − | + | '''12121 Search''' found 14 top-5000 primes as reported to [[The Prime Pages]] by itself before partnering with [[PrimeGrid]]. Their largest prime was {{Kbn|121|2033941}}, which was found on 2006-01-28 and weighed in at 612,280 digits. | |
==See also== | ==See also== | ||
*[[27121 Search]] | *[[27121 Search]] | ||
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==External links== | ==External links== | ||
| − | *[http://www.bodang.com/12121/ | + | *[https://web.archive.org/web/20100517034611/http://www.bodang.com/12121/ 12121search] |
| − | *[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]] | ||
Latest revision as of 18:20, 16 April 2025
12121 Search was a Distributed computing project that started on 2004-05-24 to search for primes of the form 121•2n-1. The project partnered with PrimeGrid on 2009-02-13 to additionally search for primes of the form 121•2n+1 and 27•2n±1.
The 12121 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
12121 Search found 14 top-5000 primes as reported to The Prime Pages by itself before partnering with PrimeGrid. Their largest prime was 121•22033941-1, which was found on 2006-01-28 and weighed in at 612,280 digits.
