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Williams primes of the form 28•27n-1

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Current data

Base : 27
Count : 13
Max n : 25,000
Date : 2018-03-17
2, 4, 6, 8, 46, 56, 79, 571, 1904, 2690, 3559, 4920, 11195
Remarks :
Should be (re)used from 28•3n-1.

History