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Generalized Cullen primes of the form `n`•221ⁿ+1

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Current data

ASCII format :	n*221^n+1
Base :	221
Count :	1
Max `n` :	200,000
Date :	2025-03-17

12

History

2025-03-17: Checked n = 10000 - 25000, Norman Luhn
2015-02-05: Checked to n = 200000, Thomas Ritschel, Predrag Minovic, The Other Prime Search
2014-12-29: Checked n = 1 - 10000, Maik Gruenewald

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Cullen prime

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