Riesel primes of the form 1268979•2ⁿ-1

Reserved! This sequence is currently part of Multi Reservation 14: Woodall fill-in.

Current data

`k` , `b` :	1268979 , 2 (sieve)
Type :	3
Count :	75
Nash :	3720
Max `n` :	790,000
Date :	2025-04-04
Reserved :	Alexander JonesAlexander Jones/Reserved

3^[1], 4^[2], 5, 11, 19^[3], 20, 35, 43^[4], 53, 60, 63^[5], 64, 69, 73^[6], 85, 123, 152, 189, 249, 605, 616, 976, 1455^[7], 1845, 1883, 1931, 2112, 2195, 2259, 2513, 2685, 2951, 3253, 3284, 3385, 3536, 4171, 4355, 7280, 7453, 7981, 9711, 13713, 17444, 18128, 20221, 25363, 26679, 32401, 35453, 39139, 41165, 41783, 47179, 52535, 53705, 58405, 68165, 84484, 106433, 127195, 142713, 181415, 236603, 332833, 387863, 426051, 485869, 487073, 577399, 650796, 701391, 748508, 749923, 1268979^[8]

Notes

History

2020-08-30: Reserved by Alexander Jones, Woodall fill-in, switch to multi-reservation
2020-08-09: Checked n = 318781 - 350000, Alexander Jones
2020-08-09: Checked n = 300000 - 318781, Predrag Kurtovic
2020-07-14: Checked n = 250000 - 300000, Alexander Jones
2020-03-17: Checked n = 50000 - 250000, Alexander Jones
2019-09-17: Checked n = 1 - 50000, Alexander Jones
2019-07-24: Reserved by Alexander Jones per Wiki update
2007-01-25: Found n = 1268979, Willem Siemelink

[1] Sophie Germain n=3

[2] Sophie Germain n=4

[3] Sophie Germain n=19

[4] Twin n=43

[5] Sophie Germain n=63

[6] Twin n=73

[7] Twin n=1455

[8] Woodall 1268979•2^1268979-1

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

Riesel primes of the form 1268979•2ⁿ-1

Current data

Notes

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Riesel primes of the form 1268979•2n-1

Current data

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Riesel primes of the form 1268979•2ⁿ-1