Riesel primes of the form 40047•2n-1

Current data

k , b : 40047 , 2 Type : 3 Count : 43 Nash : 3030 Max n : 235,000 Date : 2021-02-07

5, 6, 8, 12, 16, 18, 45, 66, 110, 136, 161, 176, 228, 388, 470, 998, 1490, 1806, 2806, 2986, 3992, 4898, 5396, 5640, 6624, 6776, 8090, 8840, 11392, 13989, 14396, 14889, 20790, 37196, 44529, 45105, 60096, 79672, 111728, 168245, 177534, 182150, 234000

History

• 2021-02-07: Checked to n = 235000, Alexander Jones, released
• 2021-02-03: Reserved by Alexander Jones
• 2020-09-07: Checked to n = 50000, Alexander Jones
• 2011-11-23: Checked to n = 1007, Gary Barnes
• 2006-06-14: Found n = 234000, Victor Felder