Riesel primes of the form 26869•2n-1

Current data

k , b : 26869 , 2 Count : 18 Nash : 1239 Max n : 400,000 Date : 2025-03-16

11, 47, 61, 301, 591, 899, 927, 1091, 5637, 11387, 11991, 18339, 41755, 55629, 86535, 102381, 244515, 1257787

History

• 2025-03-16: Checked n = 200000 - 400000, Alexander Jones, released
• 2024-10-17: Sieve file created: n = 200000-400000, Alexander Jones
• 2024-10-17: Checked n = 50000 - 200000, Alexander Jones, results included
• 2024-10-12: Reserved by Alexander Jones for n = 50000 - 400000
• 2020-08-18: Checked n = 1 - 50000, Karsten Bonath
• 2007-12-13: Found n = 1257787, Lei Zhou