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Riesel primes of the form 197•2n-1

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Current data

k , b : 197 , 2
Count : 38
Nash : 1573
Max n : 5,500,000
Date : 2025-06-21
2, 16, 20, 22, 40, 82, 112, 178, 230, 302, 304, 328, 374, 442, 472, 500, 580, 694, 1264, 1634, 1784, 3080, 5722, 7174, 8908, 18502, 18746, 39094, 99338, 170066, 202534, 325610, 510940, 569222, 635042, 825188, 1796284, 4765318

History