Proth primes of the form 1139•2n+1

Current data

k , b : 1139 , 2 Type : Low Count : 12 Nash : 682 Max n : 3,640,000 Date : 2023-10-21

9, 13, 91, 331, 529, 2641, 29169, 190753, 630055, 1450029, 2115949, 3079783

History

• 2023-10-21: Checked to n = 3640000, PrimeGrid Proth Mega Prime Search
• 2022-07-31: Checked to n = 3322000, PrimeGrid Proth Prime Search
• 2021-08-26: Found n = 3079783, Randall Scalise, PrimeGrid Proth Prime Search
• 2014-06-26: Found n = 2115949, Paulo Silva, PrimeGrid Proth Prime Search
• 2012-01-28: Found n = 1450029, Lars Wallin, PrimeGrid Proth Prime Search
• 2009-04-09: Found n = 630055, Senji Yamashita, PrimeGrid Proth Prime Search
• 2005-03-19: Found n = 190753, Peter Benson
• 1998-09-19: Found n = 29169, Tadashi Taura