Generalized Cullen primes of the form n•78n+1

Current data

ASCII format : n*78^n+1 Base : 78 Count : 5 Max n : 200,000 Date : 2024-10-25

1, 25, 105, 254, 10671

History

• 2024-10-25: Checked n = 1 - 100000, Gary Barnes, double-check, released
• 2023-06-13: Checked n = 100000 - 200000, Mark Rodenkirch, released
• 2023-05-28: Reserved by Mark Rodenkirch to n = 200000
• 2023-05-10: Checked n = 1 - 100000, Mark Rodenkirch, double-check n = 1 - 58516, released
• 2023-04-18: Reserved by Mark Rodenkirch to n = 100000
• 2010: Checked n = 11377 - 58516, Günter Löh
• 2000-12: Checked n = 2216 - 11377, Günter Löh
• 2000-12-10: Found n = 10671, Günter Löh
• 2000-02: Checked n = 1 - 2216, Wilfrid Keller