Generalized Cullen primes of the form n•81n+1

Current data

ASCII format : n*81^n+1 Base : 81 Count : 4 Max n : 280,000 Date : 2023-05-14

350, 73272, 126042, 178192

History

• 2023-05-14: Checked n = 1 - 100000, Mark Rodenkirch, double-check, released
• 2013: Checked n = 81810 - 280000, Thomas Ritschel, The Other Prime Search
• 2011-12-06: Found n = 178192, Thomas Ritschel, The Other Prime Search
• 2011-11-13: Found n = 126042, Thomas Ritschel, The Other Prime Search
• 2011: Checked n = 4085 - 86965, Günter Löh
• 2010-05-23: Found n = 73272, Günter Löh
• 2000: Checked n = 1 - 4085, Wilfrid Keller