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Riesel primes of the form 31•2n-1
| Reserved! This sequence is currently reserved by: Michael Curtis, Ryan Propper |
Current data
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Remarks : |
The sequence A050541 in OEIS See also Williams 31•32n-1 |
Notes
History
- 2024-09-24: Checked n = 3259185 - 3350000, Michael Curtis
- 2024-09-24: Found n = 3326149, Michael Curtis
- 2024-08-27: Found n = 9088085, Ryan Propper
- 2024-08-16: Reserved by Ryan Propper, for n = 6000000 - 12000000
- 2024-05-22: Checked n = 3000000 - 3259185, Michael Curtis
- 2024-05-20: Found n = 3259185, Michael Curtis
- 2023-07-17: Checked n = 2282000 - 3000000, Michael Curtis
- 2022-12-03: Found n = 2585311, Michael Curtis
- 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
- 2021-02-13: Reserved by Michael Curtis
- 2016-01-27: Checked to n = 2282000, Steven Tjung
- 2014-01-13: Checked to n = 2100000, Steven Tjung
- 2014-09-13: Checked to n = 2066000, Steven Tjung
- 2013-08-22: none, Steven Tjung
- 2012-08-19: Checked to n = 2020000, Steven Tjung
- 2011-01-28: Found n = 1755317, Steven Tjung
- 2010-02-24: Found n = 1611311, Steven Tjung
- 2009-12-05: Checked to n = 1600000, Steven Tjung
- 2009-10-06: Checked to n = 1570000, Steven Tjung
- 2009-07-26: Checked n = 1650000 - 1652063?, (unknown), See range done at RPS other completed ranges.
- 2009-05-15: Checked to n = 1510000, Steven Tjung
- 2009-04-06: Checked to n = 1370000, Steven Tjung
- 2009-02-12: Checked to n = 1350000, Steven Tjung
- 2009-01-09: Checked n = 950000 - 1015948, 1140029 - 1162645, 1430011 - 1445009, 1652063 - 1722449, 1967593 - 2002883, Peter Benson
- 2008-12-09: Found n = 421129, Raffaele De Troia, missing prime found
- 2008-12-02: Found n = 406105, Raffaele De Troia, missing prime found
- 2008-11-21: Checked to n = 1300000, Steven Tjung
- 2008-04-02: Found n = 1142093, Peter Benson
- 2008-01-31: Checked to n = 735000, Steven Tjung
- 2008-01-02: Checked to n = 707000, Steven Tjung
- 2007-12-30: Found n = 666285, Steven Tjung
- 2007-12-08: Checked to n = 685000, Steven Tjung
- 2007-12-07: Found n = 773227, Steven Tjung
- 2007-11-01: Checked to n = 645000, Steven Tjung
- 2007-09-06: Checked to n = 570000, Steven Tjung
- 2007-07-13: Checked to n = 567000, Steven Tjung
- 2007-06-25: Checked to n = 558000, Steven Tjung
- 2007-04-22: Checked to n = 527000, Steven Tjung
- 2007-03-10: Checked to n = 525000, Steven Tjung
- 2007-01-12: Checked to n = 507000, Steven Tjung
- 2006-11-03: Reserved by Steven Tjung
- 2004-08-18: Checked to n = 500000, Steven Harvey, released
- 2004-08-06: Checked to n = 494600, Steven Harvey
- 2004-08-03: Checked to n = 493000, Steven Harvey
- 2004-08-01: Checked to n = 492500, Steven Harvey
- 2004-07-26: Checked to n = 492000, Steven Harvey
- 2004-06-24: Checked to n = 426000, Steven Harvey
- 2004-05-19: Checked to n = 395119, Steven Harvey
- 2004-04-28: Found n = 315523, Steven Harvey
- 2004-04-27: Checked to n = 313000, Steven Harvey
- 2004-04-27: Found n = 311389, Steven Harvey
- 2004-04-26: Checked n = 1 - 143000,150000 - 307553, Steven Harvey
- 2004-04-26: Found n = 306751, Steven Harvey
- 2004-04-21: Checked n = 110000 - 120000,150000 - 294739, Steven Harvey
- 2004-04-19: Found n = 274115, Steven Harvey
- 2004-04-05: Found n = 196433, Steven Harvey
- 2004-04-04: Found n = 177089, Steven Harvey
- 2003-03-20: Found n = 111667, Steven Harvey
- 2000-06-03: Found n = 62083, Phil Carmody
- 2000-05-31: Found n = 57647, Phil Carmody
- 2000-05-22: Found n = 44653, Phil Carmody
- 1998-08-13: Found n = 25657, Wilfrid Keller
- 1998-08-13: Found n = 24589, Wilfrid Keller
- 1998-08-09: Found n = 21957, Wilfrid Keller
