Riesel primes of the form 8847•2n-1

Current data

k , b : 8847 , 2 Type : 3 Count : 57 Nash : 3512 Max n : 700,000 Date : 2021-05-10

4, 8, 14, 18, 20, 26, 36, 44, 54, 77, 96, 113, 124, 174, 228, 324, 376, 438, 444, 448, 449, 498, 588, 694, 725, 784, 848, 1336, 1916, 2386, 2606, 3536, 3608, 4936, 5238, 5460, 5538, 6690, 9866, 18306, 19874, 27384, 29406, 35254, 40166, 44438, 52260, 53560, 58340, 67918, 127413, 418900, 484394, 514298, 621668, 668321, 671298

History

• 2021-05-10: Checked to n = 700000, Gary Barnes, double-check n=1-500000, results included
• 2021-05-10: Found n = 514298, Gary Barnes
• 2020-11-30: Checked to n = 500000, Tyler NeSmith, released
• 2020-11-07: Reserved by Tyler NeSmith
• 2020-10-13: Checked to n = 50000, Alexander Jones
• 2011-01-15: Found n = 484394, Chris Chatfield, Twin Prime Search 480000
• 2011-01-11: Found n = 671298, James P. Burt
• 2011-01-10: Found n = 668321, James P. Burt
• 2010-11-18: Found n = 621668, James P. Burt