Riesel primes of the form 477•2n-1

Reserved! This sequence is currently part of Multi Reservation 8: NPLB Drive 17.

Current data

k , b : 477 , 2 Type : 3 Count : 34 Nash : 1767 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

1, 2, 5, 13, 22, 49, 70, 77, 437, 529, 566, 641, 673, 769, 1004, 1262, 5773, 6902, 6949, 8042, 16442, 33550, 43693, 48020, 53594, 93197, 103381, 151049, 159505, 267013, 978625, 1489922, 2057225, 2496685

History

• 2023-07-17: Found n = 2496685, Florian Piesker
• 2022-09-11: Found n = 2057225, Florian Piesker
• 2022-08-10: Checked to n = 2000000, NPLB Drive 13, released
• 2022-08-09: Reserved by NPLB Drive 17, for 2000000<n<3000000
• 2017-07-14: Found n = 1489922, Johnathan Chu
• 2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
• 2010-11-11: Checked to n = 1000000, NPLB Drive 5
• 2010-11-01: Found n = 978625, Brian Lody
• 2008-12-22: Checked to n = 600000, NPLB Drive 1
• 2008-12-19: Reserved by NPLB Drive 5, for 600000<n<1000000
• 2008-03-25: Checked to n = 333200, NPLB Drive 2
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2001-07-20: Found n = 103381, Michael Ian Hartley
• 2001-05-13: Found n = 93197, Michael Ian Hartley