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Riesel primes of the form 172677•2n-1

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Current data

k-value : 172677
Count : 9
Nash : 1298
Max n : 50,000
Date : 2020-07-05
28, 80, 88, 248, 1510, 2302, 4184, 24128, 30088
Remarks :
This k-value seems the smallest k ≡ 0 mod 3 for which k•2n-1 is never prime for an odd n. See Liskovets-Gallot conjectures.

History