Proth primes of the form 4119•2n+1

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

Current data

k , b : 4119 , 2 Type : 3 Count : 23 Nash : 1352 Max n : 1,980,000 Date : 2024-07-26 Reserved : PrimeGridPrimeGrid/Reserved

2, 9, 54, 74, 110, 369, 774, 1145, 1265, 2475, 2526, 2889, 20310, 29669, 33525, 38622, 54666, 72915, 90507, 139394, 443235, 476849, 679950

History

• 2023-10-21: Checked n = 3322000 - 3486000, PrimeGrid Proth Mega Prime Search
• 2012-12-29: Found n = 443235, Ronny Willig, PrimeGrid Proth Prime Search Extended
• 2011-08-23: Found n = 679950, Frans Englund, PrimeGrid Proth Prime Search Extended
• 2009-10-22: Found n = 476849, Kevin Winter, PrimeGrid Proth Prime Search Extended