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Proth primes of the form 26•3n+1
Reserved! This sequence is currently reserved by: Mark Rodenkirch |
Current data
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Remarks : |
See also Williams 26•27n+1 |
Notes
- ↑ Divides Phi(3^2121,2)
History
- 2024-08-19: Reserved by Mark Rodenkirch for n = 6 - 300000 only n ≡ 0 mod 3, double-check
- 2024-08-19: Reservation dropped, Paul Vanderveen
- 2021-03-07: Checked to n = 1000000, Paul Vanderveen
- 2020-12-29: Checked to n = 900000, Paul Vanderveen
- 2020-10-16: Found n = 1910099, Paul Vanderveen
- 2020-10-16: Checked to n = 810000, Paul Vanderveen
- 2020-09-14: Checked to n = 750000, Paul Vanderveen
- 2020-08-03: Found n = 1565545, Paul Vanderveen
- 2020-08-02: Checked to n = 650000, Paul Vanderveen
- 2020-07-13: Found n = 1700041, Paul Vanderveen
- 2020-07-05: Found n = 1435875, Paul Vanderveen
- 2020-07-01: Checked to n = 525000, Paul Vanderveen
- 2020-06-08: Checked to n = 400000, Paul Vanderveen
- 2020-05-24: Reserved by Paul Vanderveen
- 2020-05-22: Checked to n = 100000, Karsten Bonath
- 2006-09-24: Found n = 182141, Peter Benson
- 2006-05-02: Found n = 165483, Peter Benson
- 2005-05-02: Found n = 153841, Peter Benson
- 2004-10-22: Found n = 133052, Peter Benson
- 2004-03-09: Found n = 107760, Peter Benson
- 1998-11-21: Found n = 15943, David Hanson
- 1994: Found n = 2121, Wilfrid Keller