Riesel primes of the form 21181•2n-1

Current data

k , b : 21181 , 2 Count : 28 Nash : 1588 Max n : 300,000 Date : 2023-04-13

5, 49, 95, 135, 139, 633, 735, 969, 1255, 1595, 1693, 2053, 2625, 3115, 3533, 4139, 4839, 16703, 25155, 33969, 48875, 64309, 115109, 124329, 129799, 153235, 180135, 231513

History

• 2023-04-13: Checked to n = 300000, Alexander Jones, released
• 2023-02-01: Checked to n = 150000, Alexander Jones
• 2023-01-29: Checked to n = 100000, Alexander Jones
• 2023-01-29: Reserved by Alexander Jones
• 2004-12-19: Found n = 231513, Maksym Voznyy