Riesel primes of the form 938237•2n-1

Reserved! This sequence is currently part of Multi Reservation 14: Woodall fill-in.

Current data

k , b : 938237 , 2 Count : 34 Nash : 1702 Max n : 750,000 Date : 2024-10-26 Reserved : Alexander JonesAlexander Jones/Reserved

6, 14, 16, 18, 30, 34, 54, 56, 66, 200, 234, 236, 418, 678, 904, 1650, 3506, 3586, 3664, 6198, 7084, 24298, 26020, 36166, 42400, 47416, 52760, 140860, 168774, 171186, 241840, 455888, 491576, 3752950

History

• 2021-08-19: Checked to n = 525000, Alexander Jones
• 2021-06-27: Checked to n = 500000, Alexander Jones
• 2021-05-12: Checked to n = 475000, Alexander Jones
• 2021-04-03: Checked to n = 450000, Alexander Jones
• 2021-01-04: Checked to n = 425000, Alexander Jones
• 2020-11-18: Checked to n = 400000, Alexander Jones
• 2020-09-19: Checked to n = 375000, Alexander Jones
• 2020-08-09: Checked to n = 350000, Alexander Jones, Predrag Kurtovic
• 2020-07-14: Checked to n = 300000, Alexander Jones
• 2019-07-23: Reserved by Alexander Jones
• 2018-06-02: Checked to n = 250000, Alexander Jones
• 2007-12-26: Found n = 3752950, Matthew J. Thompson, PrimeGrid Woodall Prime Search (Official announcement)