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Riesel primes of the form 393•2ⁿ-1

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Revision as of 02:36, 4 June 2022 by Gd barnes (talk | contribs) (NPLB drive 16)

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

Current data

`k` , `b` :	393 , 2
Type :	3
Count :	30
Nash :	1827
Max `n` :	3,100,000
Date :	2024-08-15
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

2, 4, 14, 59, 112, 118, 146, 235, 424, 478, 712, 742, 2494, 2611, 3082, 3466, 5102, 8866, 28480, 47080, 51892, 95882, 128584, 138662, 146440, 169646, 185584, 1095688, 1297402, 1583890

History

2022-06-03: Reserved by NPLB Drive 16, for 2000000<n<3000000
2014-08-20: Checked to n = 2000000, NPLB Mini Drive 5, released
2014-05-20: Found n = 1583890, Timothy Sorbera
2013-08-17: Reserved by NPLB Mini Drive 5, for 1300000<n<2000000
2011-01-20: Checked to n = 1300000, Ian M. Gunn, released
2011-01-17: Found n = 1297402, Ian M. Gunn
2010-12-11: Found n = 1095688, Ian M. Gunn
2010-09-01: Reserved by Ian M. Gunn, for 1000000<n<1300000
2009-03-28: Checked to n = 1000000, Ian M. Gunn, released
2009-03-20: Checked to n = 985000, Ian M. Gunn
2009-03-10: Checked to n = 780000, Ian M. Gunn
2009-02-04: Reserved by Ian M. Gunn for 600000<n<1000000
2008-11-10: Checked to n = 600000, NPLB Drive 3, released
2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
2002-08-02: Found n = 185584, Peter O'braian
2002-07-27: Found n = 169646, Peter O'braian
2002-07-27: Found n = 146440, Peter O'braian
2002-04-30: Found n = 138662, Peter O'braian
2002-04-29: Found n = 128584, Peter O'braian
2001-03-18: Found n = 95882, Kimmo Herranen

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