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Difference between revisions of "Proth prime 2 121"
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|PDate=2021-04-08 | |PDate=2021-04-08 | ||
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| − | |PRemarks= | + | |PRemarks=The {{OEIS|l|A032410}}.<br>For all {{Vn}}-values {{Kbn|+|121|2|n}} is a [[Generalized Fermat number]].<br>[[PrimeGrid Proth Prime Search]] is double-checking {{Vn}}>5000000. |
|PSieve= | |PSieve= | ||
}} | }} | ||
Latest revision as of 20:57, 13 September 2024
Current data
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Remarks : |
The sequence A032410 in OEIS. For all n-values 121•2n+1 is a Generalized Fermat number. PrimeGrid Proth Prime Search is double-checking n>5000000. |
Notes
- ↑ Is GF Divisor of xGF(11,8,3)
- ↑ Is GF Divisor of xGF(95,9,7)
- ↑ Is GF Divisor of GF(112207,5)
History
- 2021-04-08: Checked to n = 10000000, PrimeGrid 27121 Prime Search
- 2020-11-20: Found n = 9584444, James Winskill, PrimeGrid 27121 Prime Search (Official announcement)
- 2019-07: Checked n = 3322000 - 3640000, PrimeGrid Proth Mega Prime Search
- 2007-04-29: Found n = 636564, Joseph Bohanon
- 2007-04-25: Found n = 674360, Joseph Bohanon
- 2007-04-25: Found n = 513020, Joseph Bohanon
- 2005-02-21: Found n = 272052, Jim Fougeron
- 2005-02-18: Found n = 264632, Jim Fougeron
- 2002-09-17: Found n = 251184, Tadashi Taura
- 2002-07-21: Found n = 168716, Tadashi Taura
- 1999-12-10: Found n = 112208, Fumitaka Yura
- 1999-09-07: Found n = 91112, Michael Ian Hartley
- 1998-06-09: Found n = 59196, Wilfrid Keller
- 1998-06-06: Found n = 37784, Wilfrid Keller
- 1992: Found n = 7928, Harvey Dubner
