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Williams primes of the form 19•20ⁿ+1

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Current data

Base :	20
Count :	8
Max n :	100,000
Date :	2020-11-13

14, 18, 20, 38, 108, 150, 640, 8244

History

2020-11-13: Checked to n = 100000, Paul Vanderveen
2018-03-09: Checked to n = 25000, Eric Chen
2016: Checked to n = 1000, Mauro Fiorentini

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Williams prime MP