Generalized Cullen primes of the form n•17n+1

Current data

ASCII format : n*17^n+1 Base : 17 Count : 3 Max n : 1,000,000 Date : 2024-10-25

19650, 236418, 811138

History

• 2024-10-25: Checked n = 1 - 100000, Gary Barnes, double-check, released
• 2023-05-20: Checked to n = 1000000, Ryan Propper
• 2023-05-20: Found n = 811138, Ryan Propper
• 2023-05-18: Reserved by Ryan Propper to n = 1000000
• 2023-04-23: Checked n = 2 - 100000, Mark Rodenkirch, double-check
• 2014: Checked n = 15207 - 304241, Günter Löh
• 2012-12-10: Found n = 236418, Günter Löh
• 2000-01-08: Found n = 19650, Günter Löh
• 2000: Checked n = 3195 - 15207, Wilfrid Keller
• 1989: Checked n = 1 - 3195, Harvey Dubner