Proth primes of the form 5505•2n+1

Reserved! This sequence is currently part of Multi Reservation 25: PrimeGrid Proth Prime Search Extended.

Current data

k , b : 5505 , 2 Type : 315 Count : 57 Nash : 3173 Max n : 1,980,000 Date : 2024-07-26 Reserved : PrimeGridPrimeGrid/Reserved

3, 5, 9, 12, 15, 17, 30, 50, 53, 57, 80, 99, 168, 570, 642, 677, 708, 765, 780, 1230, 1296, 1872, 1902, 1935, 2156, 3225, 3942, 4098, 4679, 7683, 11510, 13907, 16119, 17292, 24042, 25244, 35352, 61280, 62934, 63486, 105840, 130292, 131670, 149603, 150893, 171347, 242160, 244062, 287226, 848408, 901377, 1155282, 1212579, 1266048, 1738323, 1869345, 3375777

History

• 2024-02-05: Found n = 1869345, Pablo Moreno, PrimeGrid Proth Prime Search Extended
• 2023-10-21: Checked n = 3322000 - 3486000, PrimeGrid Proth Mega Prime Search
• 2021-08-12: Found n = 3375777, Randall Scalise, PrimeGrid Proth Mega Prime Search
• 2014-05-08: Found n = 1266048, Douglas B. McKay, PrimeGrid Proth Prime Search Extended
• 2013-12-18: Found n = 1212579, Grzegorz Granowski, PrimeGrid Proth Prime Search Extended
• 2013-09-21: Found n = 1155282, Mark Molder, PrimeGrid Proth Prime Search Extended
• 2012-06-09: Found n = 901377, Randall Scalise, PrimeGrid Proth Prime Search Extended
• 2012-04-29: Found n = 848408, Ron Jones, PrimeGrid Proth Prime Search Extended
• 1996-05-01: Found n = 7683, Patrick Demichel
• 1993: Found n = 4679, Jeffrey Young
• 1993: Found n = 4098, Jeffrey Young
• 1993: Found n = 3942, Jeffrey Young