Riesel primes of the form 455•2ⁿ-1

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

Current data

`k` , `b` :	455 , 2
Count :	34
Nash :	1416
Max `n` :	2,820,000
Date :	2024-03-09
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

20, 24, 30, 62, 94, 102, 112, 270, 640, 756, 1172, 1742, 1764, 2550, 3806, 4180, 4822, 5432, 38220, 40300, 44780, 56640, 72780, 83686, 87564, 177376, 178600, 198694, 218070, 233584, 239502, 615036, 937606, 2754132

2023-12-17: Found n = 2754132, 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
2018-03-09: Found n=1560160, (Sashixi), submitted by Gary Barnes, but was composite
2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
2010-11-11: Checked to n = 1000000, NPLB Drive 5
2010-10-29: Found n = 937606, Brian Lody
2009-01-03: Found n = 615036, Ian M. Gunn
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
2005-09-21: Found n = 239502, Steven Harvey
2005-09-21: Found n = 233584, Steven Harvey
2004-11-08: Found n = 218070, Steven Harvey
2004-11-08: Found n = 198694, Steven Harvey
2004-08-18: Found n = 178600, Steven Harvey
2004-08-18: Found n = 177376, Steven Harvey