Proth primes of the form 99•10n+1

Current data

k , b : 99 , 10 Type : 3 Count : 20 Nash : 3761 Max n : 100,000 Date : 2024-09-29

1, 2, 4, 8, 16, 20, 24, 72, 200, 359, 454, 624, 1054, 2060, 6301, 8083, 8407, 13159, 65059, 74957

Remarks :

The sequence A109713 in OEIS See history at Studio Kamada k*10^n+1 form and difficulty 99*10^(w+1)+1. For additional even n history, see Williams 99•100n+1.

History

• 2024-09-29: Checked n = 1 - 50000 only even n, Richard Kapek, from Williams 99•100ⁿ+1
• 2005-08-08: Checked n = 1 - 21000, Jason Earls
• 2005-06-29: Found n = 74957, Peter Benson
• 2004-11-22: Found n = 65059, Peter Benson