Proth primes of the form 9777•2n+1

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

Current data

k , b : 9777 , 2 Type : 3 Count : 22 Nash : 1485 Max n : 2,000,000 Date : 2024-10-15 Reserved : PrimeGridPrimeGrid/Reserved

22, 46, 240, 396, 478, 910, 1540, 2968, 7968, 18975, 25804, 30748, 52186, 164004, 175270, 231988, 296296, 676480, 1028487, 1061506, 1104087, 3462742

History

• 2023-10-21: Checked n = 3322000 - 3486000, PrimeGrid Proth Mega Prime Search
• 2023-03-11: Found n = 3462742, Ryan Propper, PrimeGrid Proth Mega Prime Search
• 2013-07-30: Found n = 1104087, Michael Mamanakis, PrimeGrid Proth Prime Search Extended
• 2013-06-03: Found n = 1061506, James Boerner, PrimeGrid Proth Prime Search Extended
• 2012-10-17: Found n = 1028487, Keith Elliott, PrimeGrid Proth Prime Search Extended
• 2011-08-21: Found n = 676480, Ray Miller, PrimeGrid Proth Prime Search Extended
• 1999-08-15: Found n = 52186, Tadashi Taura