| Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3). |
Navigation
| Topics | Help • Register • News • History • How to • Sequences statistics • Template prototypes |
Difference between revisions of "PrimeGrid 27121 Prime Search"
(navbox) |
(remove obsolete multi-reservation) |
||
| (4 intermediate revisions by 3 users not shown) | |||
| Line 1: | Line 1: | ||
==Purpose== | ==Purpose== | ||
Searching for primes of the forms {{Kbn|±|27|n}} and {{Kbn|±|121|n}}. | Searching for primes of the forms {{Kbn|±|27|n}} and {{Kbn|±|121|n}}. | ||
| + | |||
| + | The project ended in 2022 after all {{Vn}}≤10000000 were completed. | ||
==Status== | ==Status== | ||
| − | *[http://prpnet.primegrid.com:12006/ PRPnet status] | + | *[https://web.archive.org/web/*/http://prpnet.primegrid.com:12006/ PRPnet status] |
*[[Riesel prime 2 27]] | *[[Riesel prime 2 27]] | ||
*[[Proth prime 2 27]] | *[[Proth prime 2 27]] | ||
*[[Riesel prime 2 121]] | *[[Riesel prime 2 121]] | ||
*[[Proth prime 2 121]] | *[[Proth prime 2 121]] | ||
| − | |||
| − | |||
| − | |||
==History== | ==History== | ||
| − | *2009-02-13: Collaborating work with [[12121 Search]] | + | *{{HistLink|2022-03-21|P#9850#154888}}: For {{Kbn|±|27|n}} all {{Vn}}≤10000000 were checked |
| + | *{{HistLink|2021-04-08|P#9612#149921}}: For {{Kbn|±|121|n}} all {{Vn}}≤10000000 were checked | ||
| + | *{{HistLink|2009-02-13|P#1229#13574}}: Collaborating work with [[12121 Search]] | ||
==See also== | ==See also== | ||
Latest revision as of 00:15, 15 May 2024
Contents
Purpose
Searching for primes of the forms 27•2n±1 and 121•2n±1.
The project ended in 2022 after all n≤10000000 were completed.
Status
History
- 2022-03-21: For 27•2n±1 all n≤10000000 were checked
- 2021-04-08: For 121•2n±1 all n≤10000000 were checked
- 2009-02-13: Collaborating work with 12121 Search
See also
External links
PrimeGrid
| Miscellaneous |
| Subprojects |
|
| Completed |
| Others |
