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Generalized Cullen primes of the form `n`•172ⁿ+1

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Current data

ASCII format :	n*172^n+1
Base :	172
Count :	5
Max `n` :	100,000
Date :	2015-12

1, 31, 79, 2155, 61813

History

2015-12: Checked n = 70000 - 100000, Steven Harvey
2008-09: Checked n = 1 - 70000, Daniel Hermle
2007-08-04: Found n = 61813, Daniel Hermle
2004-07: Found n = 2155, Daniel Hermle

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Cullen prime