Riesel primes of the form 23295•2ⁿ-1

Current data

`k` , `b` :	23295 , 2
Type :	315
Count :	80
Nash :	4347
Max `n` :	1,000,000
Date :	2021-07-20

1^[1], 2, 4, 8, 16, 20^[2], 21, 35, 38^[3], 39^[4], 40, 56, 62, 64, 145^[5], 155, 166, 173, 199, 242, 262, 325^[6], 376, 403, 559^[7], 560, 791, 1096, 1151, 1204, 1208, 1279, 1360, 1478, 1750, 1790, 1925, 2576, 2684, 3036, 3338, 3683, 3970, 4089, 4336, 4620, 5032, 5736, 6429, 7139, 9062, 11539, 12290, 12632, 13918, 14772, 15793, 17116, 17409, 17518, 17521, 21405, 21571, 33713, 65063, 67682, 82670, 89076, 148049, 192591, 215636, 243515, 248423, 299084, 356324, 434889, 465214, 519113, 631138, 805393

Notes

History

2021-07-20: Checked to n = 400000, Alexander Jones, released
2021-06-01: Checked to n = 375000, Alexander Jones
2021-01-13: Checked to n = 350000, Alexander Jones
2020-10-01: Checked to n = 325000, Alexander Jones
2020-06-17: Checked to n = 300000, Alexander Jones
2020-03-17: Reserved by Alexander Jones
2018-06-23: Checked n = 400000 - 1000000, RPS Drive 9, released
2011-11-23: Checked to n = 1007, Gary Barnes
2010-10-13: Found n = 805393, Peter Benson, RPS Drive 9
2010-04-21: Found n = 631138, David Metcalfe, RPS Drive 9
2009-07-30: Found n = 519113, David Metcalfe, RPS Drive 9
2009-06-04: Found n = 465214, Predrag Minovic, RPS Drive 9
2009-05-14: Found n = 434889, Lennart Vogel, RPS Drive 9
2009-05-12: Reserved by RPS Drive 9 for n > 400000

[1] Sophie Germain n=1, Twin n=1

[2] Sophie Germain n=20

[3] Sophie Germain n=38

[4] Sophie Germain n=39

[5] Twin n=145

[6] Twin n=325

[7] Sophie Germain n=559

[1]

[2]

[3]

[4]

[5]

[6]

[7]

Riesel primes of the form 23295•2ⁿ-1

Current data

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Riesel primes of the form 23295•2n-1

Current data

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History

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Riesel primes of the form 23295•2ⁿ-1