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Difference between revisions of "PrimeGrid 27121 Prime Search"
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==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}}. | ||
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| + | The project ended on 2022-03-21 after all {{Vn}}≤10000000 were completed. | ||
==Status== | ==Status== | ||
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*[[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]] | ||
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| − | |||
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==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== | ||
*[[PrimeGrid]] | *[[PrimeGrid]] | ||
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==External links== | ==External links== | ||
| − | *[https://www.primegrid.com/forum_thread.php?id=1229 27121 Prime Search - PrimeGrid | + | *[https://www.primegrid.com/forum_thread.php?id=1229 27121 Prime Search - PrimeGrid forum] |
| − | [[Category:PrimeGrid 27121 Prime Search | + | {{Navbox PrimeGrid}} |
| + | [[Category:PrimeGrid|27121 Prime Search]] | ||
Latest revision as of 18:05, 18 April 2025
Contents
[hide]Purpose
Searching for primes of the forms 27•2n±1 and 121•2n±1.
The project ended on 2022-03-21 after all n≤10000000 were completed.
Status
History
- For 27•2n±1 all n≤10000000 were checked
- For 121•2n±1 all n≤10000000 were checked
- Collaborating work with 12121 Search
See also
External links
PrimeGrid
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| Completed |
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