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Proth primes of the form 1105•2n+1
Current data
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History
- 2023-10-21: Checked to n = 3640000, PrimeGrid Proth Mega Prime Search
- 2022-07-31: Checked to n = 3322000, PrimeGrid Proth Prime Search
- 2021-07-22: Found n = 3069884, Toshiya Satoh, PrimeGrid Proth Prime Search
- 2015-12-13: Found n = 2213846, Paul Medcalf, PrimeGrid Proth Prime Search
- 2014-08-06: Found n = 2171956, Randall Scalise, PrimeGrid Proth Prime Search
- 2012-02-10: Found n = 1314586, Daniel Hagerty, PrimeGrid Proth Prime Search
- 2011-11-14: Found n = 1278476, Giles Averay-Jones, PrimeGrid Proth Prime Search
- 2011-09-20: Found n = 1065418, Mark Wilcoxen, PrimeGrid Proth Prime Search
- 2009-04-26: Found n = 636002, Nathan Russell, PrimeGrid Proth Prime Search
- 2009-04-05: Found n = 622142, Adriano Vajro, PrimeGrid Proth Prime Search
- 2007-06-06: Found n = 404584, Peter Benson
- 2007-04-18: Found n = 394832, Peter Benson
- 2005-12-30: Found n = 281308, Peter Benson
- 2005-10-05: Found n = 263320, Peter Benson
- 2001-07-21: Found n = 130684, Jim Fougeron
- 1999-03-13: Found n = 30458, Tadashi Taura
- 1996-07: Found n = 17446, Patrick Demichel
- 1993: Found n = 9170, Harvey Dubner