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Riesel primes of the form 407•2ⁿ-1

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Revision as of 20:52, 13 August 2022 by Gd barnes (talk | contribs) (add history)

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

Current data

`k` , `b` :	407 , 2
Type :	Low
Count :	14
Nash :	746
Max `n` :	2,820,000
Date :	2024-03-09
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

2, 182, 290, 734, 782, 806, 1226, 15104, 15976, 31826, 135146, 769166, 1025072, 1689824

History

2022-08-10: Checked to n = 2000000, NPLB Drive 13, released
2022-08-09: Reserved by NPLB Drive 17, for 2000000<n<3000000
2022-03-08: Found n = 1689824, Florian Piesker
2011-08-17: Found n = 1025072, Chris Chatfield
2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
2010-11-11: Checked to n = 1000000, NPLB Drive 5
2010-05-02: Found n = 769166, Gary Barnes
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
2002-05-11: Found n = 135146, Peter O'braian

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