Riesel primes of the form 85215•2n-1

Current data

k , b : 85215 , 2 Type : 315 Count : 41 Nash : 3165 Max n : 100,000 Date : 2025-01-10

2, 3, 5, 8, 11, 39, 71, 80, 86, 119, 120, 243, 246, 386, 477, 543, 623, 1160, 1247, 1317, 1646, 3252, 3600, 3611, 4743, 5966, 6761, 8610, 9233, 10403, 13455, 20199, 24080, 32315, 44579, 47109, 58112, 61916, 66245, 80556, 492131

History

• 2025-01-10: Checked n = 50000 - 100000, Alexander Jones
• 2020-08-29: Checked n = 1 - 50000, Karsten Bonath
• 2011-09-21: Found n = 492131, Pietari Snow, Twin Prime Search 480000