Riesel primes of the form 65•2ⁿ-1

Current data

`k` , `b` :	65 , 2
Count :	43
Nash :	2034
Max `n` :	3,100,000
Date :	2021-03-21

4, 6^[1], 12^[2], 22, 28, 52, 78^[3], 94, 124, 162^[4], 174^[5], 192^[6], 204^[7], 304, 376, 808, 930^[8], 972^[9], 1714, 1776^[10], 2176, 2568^[11], 4392^[12], 4728^[13], 5548, 8046^[14], 12474^[15], 26856^[16], 27156^[17], 45240^[18], 52026^[19], 134598^[20], 179658^[21], 185946^[22], 578512, 647130^[23], 1374574, 1421088^[24], 1505640^[25], 2450614, 2583720^[26], 2876718^[27], 3080952^[28]

Remarks :

Notes

History

2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
2020-11-12: Checked n = 3000000 - 3100000, RPS Megabit Drive 1
2020-11-12: Found n = 3080952, Thomas Ritschel, RPS Megabit Drive 1
2018-04-11: Checked n = 1000000 - 1620000, 1669972 - 3000000, RPS Megabit Drive 1
2016-12-30: Found n = 2876718, Thomas Ritschel, RPS Megabit Drive 1
2015-11-08: Found n = 2583720, Thomas Ritschel, RPS Megabit Drive 1
2014-02-04: Found n = 2450614, Predrag Minovic, RPS Megabit Drive 1
2011-03-11: Found n = 1505640, Larry Soule, RPS Megabit Drive 1
2011-02-14: Found n = 1421088, Peter Benson, RPS Megabit Drive 1
2011-01-30: Found n = 1374574, Larry Soule, RPS Megabit Drive 1
2010-10-24: Reserved by RPS Megabit Drive 1 from n = 1000000
2009-07-30: Reserved by Borys Jaworski for sieving only n = 1700000 - 5000000
2009-07-26: Checked n = 1620000 - 1652064?, (unknown), See range done at RPS other completed ranges.
2009-01-09: Checked n = 950000 - 985343, 1652064 - 1669972, Peter Benson
2008-09-10: Checked n = 989596 - 1000000, Gary Barnes, released
2008-09-07: Reserved by Gary Barnes for n = 989596 - 1000000
2007-03-01: Checked n = 600000 - 989596, RPS Drive K65, released
2006-08-02: Found n = 647130, J. Craig Brunson, RPS Drive K65
2005-10-03: Checked n = 430000 - 600000, RPS Drive K65
2005-09-18: Found n = 578512, Thomas Richard, RPS Drive K65
2005-09-06: Checked n = 418000 - 430000, Ingmar Goudt, released
2005-09-03: Reserved by RPS Drive K65 from n = 430000
2005-08-11: Checked n = 395000 - 418000, Ingmar Goudt
2005-06-29: Checked n = 380000 - 395000, Ingmar Goudt
2005-06-14: Checked n = 365000 - 380000, Ingmar Goudt
2005-05-26: Checked n = 310000 - 365000, Ingmar Goudt
2005-04-26: Reserved by Ingmar Goudt
2005-03-29: Checked n = 305000 - 310000, Ingmar Goudt, released
2005-03-27: Checked n = 267000 - 305000, Ingmar Goudt
2005-03-14: Checked n = 210000 - 267000, Ingmar Goudt
2005-02-28: Reserved by Ingmar Goudt from n = 210000
2004-08-01: Checked n = 200000 - 210000, Steven Harvey, released
2004-07-26: Reserved by Steven Harvey for n = 200000 - 210000
2004-05-26: Reserved by Mark Anderson for n = 250 - 200000
2002-09-04: Found n = 185946, Peter Grobstich
2002-08-28: Found n = 179658, Peter Grobstich
2002-07-29: Found n = 134598, Peter Grobstich

[1] Jump up ↑ Williams 65•64¹-1

[2] Jump up ↑ Williams 65•64²-1

[3] Jump up ↑ Williams 65•64¹³-1

[4] Jump up ↑ Williams 65•64²⁷-1

[5] Jump up ↑ Williams 65•64²⁹-1

[6] Jump up ↑ Williams 65•64³²-1

[7] Jump up ↑ Williams 65•64³⁴-1

[8] Jump up ↑ Williams 65•64¹⁵⁵-1

[9] Jump up ↑ Williams 65•64¹⁶²-1

[10] Jump up ↑ Williams 65•64²⁹⁶-1

[11] Jump up ↑ Williams 65•64⁴²⁸-1

[12] Jump up ↑ Williams 65•64⁷³²-1

[13] Jump up ↑ Williams 65•64⁷⁸⁸-1

[14] Jump up ↑ Williams 65•64¹³⁴¹-1

[15] Jump up ↑ Williams 65•64²⁰⁷⁹-1

[16] Jump up ↑ Williams 65•64⁴⁴⁷⁶-1

[17] Jump up ↑ Williams 65•64⁴⁵²⁶-1

[18] Jump up ↑ Williams 65•64⁷⁵⁴⁰-1

[19] Jump up ↑ Williams 65•64⁸⁶⁷¹-1

[20] Jump up ↑ Williams 65•64²²⁴³³-1

[21] Jump up ↑ Williams 65•64²⁹⁹⁴³-1

[22] Jump up ↑ Williams 65•64³⁰⁹⁹¹-1

[23] Jump up ↑ Williams 65•64¹⁰⁷⁸⁵⁵-1

[24] Jump up ↑ Williams 65•64²³⁶⁸⁴⁸-1

[25] Jump up ↑ Williams 65•64²⁵⁰⁹⁴⁰-1

[26] Jump up ↑ Williams 65•64⁴³⁰⁶²⁰-1

[27] Jump up ↑ Williams 65•64⁴⁷⁹⁴⁵³-1

[28] Jump up ↑ Williams 65•64⁵¹³⁴⁹²-1

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Riesel primes of the form 65•2ⁿ-1

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Riesel primes of the form 65•2n-1

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Riesel primes of the form 65•2ⁿ-1