Riesel primes of the form 345•2n-1

Reserved! This sequence is currently part of Multi Reservation 26: NPLB Drive 19.

Current data

k , b : 345 , 2 Type : 315 Count : 43 Nash : 2447 Max n : 3,100,000 Date : 2024-08-15 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

4, 6, 7, 15, 16, 22, 30, 34, 40, 46, 51, 67, 72, 99, 100, 142, 150, 324, 609, 807, 1371, 2484, 2640, 3306, 4164, 8734, 9655, 12456, 14272, 14296, 15609, 18702, 24309, 74901, 128974, 137671, 148632, 222691, 894064, 1000251, 1175842, 1742652, 2313720

History

• 2023-03-07: Reserved by NPLB Drive 19, for 3000000<n<4000000
• 2022-06-03: Checked to n = 3000000, NPLB Drive 15, released
• 2017-10-30: Found n = 2313720, Ricky L. Hubbard
• 2014-12-29: Reserved by NPLB Drive 15, for n=2000000-3000000
• 2013-02-02: Checked to n = 2000000, NPLB Mini Drive 3, released
• 2012-01-25: Found n = 1742652, Karsten Bonath
• 2010-10-10: Found n = 1175842, Karsten Bonath
• 2010-05-19: Found n = 1000251, Karsten Bonath
• 2010-05-18: Reserved by NPLB Mini Drive 3, for 1000000<n<1300000
• 2009-09-11: Checked to n = 1000000, NPLB Mini Drive 1, released
• 2009-06-17: Found n = 894064, Karsten Bonath
• 2009-05-14: Reserved by NPLB Mini Drive 1, for 600000<n<970000
• 2008-12-30: Reserved by NPLB Mini Drive 1, for 600000<n<950000
• 2008-11-10: Checked to n = 600000, NPLB Drive 3, released
• 2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
• 2003-11-11: Found n = 222691, Michael Ian Hartley
• 2003-07-30: Found n = 148632, Michael Ian Hartley
• 2003-07-30: Found n = 137671, Michael Ian Hartley
• 2003-07-30: Found n = 128974, Michael Ian Hartley