Proth primes of the form 915•2n+1

Current data

k , b : 915 , 2 Type : 315 Count : 54 Nash : 2802 Max n : 3,640,000 Date : 2023-10-21

1, 3, 18, 22, 25, 37, 46, 55, 70, 91, 136, 186, 238, 438, 517, 652, 730, 1090, 1108, 1723, 2005, 2550, 2967, 3559, 3856, 3895, 6831, 9139, 11455, 11695, 13393, 16993, 21915, 23079, 23647, 28159, 48211, 58455, 75408, 95977, 100140, 110826, 134308, 143250, 155641, 847246, 1051477, 1686699, 1805031, 2064663, 2135151, 2375923, 3033775, 3141942

History

• 2023-10-21: Checked to n = 3640000, PrimeGrid Proth Mega Prime Search
• 2022-07-31: Checked to n = 3322000, PrimeGrid Proth Prime Search
• 2021-12-21: Found n = 3141942, Mason Rubin, PrimeGrid Proth Prime Search
• 2021-05-12: Found n = 3033775, Stefan Larsson, PrimeGrid Proth Prime Search
• 2016-07-20: Found n = 2375923, Grzegorz Granowski, PrimeGrid Proth Prime Search
• 2014-07-08: Found n = 2135151, Mariusz Szafrański, PrimeGrid Proth Prime Search
• 2014-05-26: Found n = 2064663, Randall Scalise, PrimeGrid Proth Prime Search
• 2013-10-30: Found n = 1805031, Grzegorz Granowski, PrimeGrid Proth Prime Search
• 2012-12-20: Found n = 1686699, Michael Mamanakis, PrimeGrid Proth Prime Search
• 2011-09-19: Found n = 1051477, Dmitry Domanov, PrimeGrid Proth Prime Search
• 2011-04-25: Found n = 847246, Bruce Dodson, PrimeGrid Proth Prime Search
• 2004-01-14: Found n = 143250, John Metcalf
• 2003-11-08: Found n = 134308, John Metcalf
• 2001-10-26: Found n = 100140, Anton Oleynick
• 1998-08-31: Found n = 28159, Tadashi Taura
• 1998-03-24: Found n = 11455, Ray Ballinger
• 1998-03-03: Found n = 16993, Charles F. Kerchner
• 1998-02-13: Found n = 13393, Ray Ballinger
• 1996: Found n = 23647, Patrick Demichel
• 1996: Found n = 23079, Patrick Demichel
• 1996-10: Found n = 21915, Patrick Demichel
• 1993: Found n = 9139, Harvey Dubner
• 1993: Found n = 6831, Harvey Dubner