Williams primes of the form 27•28n+1

Current data

Base : 28 Count : 13 Max n : 200,000 Date : 2024-11-04

1, 2, 136, 154, 524, 1234, 2150, 2368, 7222, 10082, 14510, 16928, 39400

History

• 2024-11-04: Checked n = 100000 - 200000, Richard Kapek, released
• 2024-10-19: Reserved by Richard Kapek for n = 100000 - 200000
• 2024-09-25: Checked n = 2 - 100000, Mark Rodenkirch, double-check n = 2 - 25000, released
• 2024-08-19: Reserved by Mark Rodenkirch for n = 2 - 100000
• 2018-03-14: Checked n = 1 - 25000, Eric Chen
• 2016: Checked n = 1 - 1000, Mauro Fiorentini