Generalized Cullen primes of the form n•200n+1

Current data

ASCII format : n*200^n+1 Base : 200 Count : 6 Max n : 100,000 Date : 2024-11-06

3, 21, 29, 305, 2494, 72358

History

• 2024-11-06: Checked n = 1 - 100000, Gary Barnes, double-check, released
• 2024-10-28: Reserved by Gary Barnes, for n = 1 - 100000 double-check
• 2015-12: Checked n = 70000 - 100000, Steven Harvey
• 2015-12: Found n = 72358, Steven Harvey
• 2008-09: Checked n = 1 - 70000, Daniel Hermle
• 2000-02-05: Found n = 2494, Hans Rosenthal