Proth primes of the form 8139•2n+1

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

Current data

k , b : 8139 , 2 Type : 3 Count : 29 Nash : 1062 Max n : 2,000,000 Date : 2024-10-15 Reserved : PrimeGridPrimeGrid/Reserved

7, 27, 43, 63, 79, 85, 133, 139, 207, 475, 679, 1393, 5289, 17115, 19719, 24381, 25954, 49659, 59047, 87613, 128085, 198655, 211563, 251295, 287745, 415467, 1165417, 1733467, 3447967

History

• 2023-10-21: Checked n = 3322000 - 3486000, PrimeGrid Proth Mega Prime Search
• 2023-01-28: Found n = 3447967, Chris Wilson, PrimeGrid Proth Mega Prime Search
• 2013-09-30: Found n = 1165417, Randy Ready, PrimeGrid Proth Prime Search Extended
• 1999-07-11: Found n = 59047, Tadashi Taura