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Riesel primes of the form 553•2ⁿ-1

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Revision as of 08:37, 4 December 2023 by Gd barnes (talk | contribs) (n=2727583)

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

Current data

`k` , `b` :	553 , 2
Type :	Low
Count :	25
Nash :	985
Max `n` :	2,820,000
Date :	2024-03-09
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

3, 7, 39, 63, 87, 95, 235, 567, 603, 975, 1487, 2203, 2815, 2955, 5483, 5803, 6935, 18407, 41235, 55415, 102495, 127499, 1143639, 2306343, 2727583

History

2023-12-04: Found n = 2727583, Florian Piesker
2023-02-28: Found n = 2306343, 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
2012-09-22: Found n = 1143639, Lennart Vogel
2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
2010-11-11: Checked to n = 1000000, NPLB Drive 5
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
2003-07-25: Found n = 127499, Steven Harvey
2002-11-22: Found n = 102495, Steven Harvey

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