Proth primes of the form 40•3n+1

Current data

k , b : 40 , 3 Count : 34 Nash : 2200 Max n : 200,000 Date : 2024-09-16

5, 7, 15, 17, 18, 27, 29, 30, 33, 35, 53, 54, 59, 60, 150, 203, 229, 395, 475, 543, 930, 1095, 1310, 4082, 4100, 5809, 7463, 32807, 33579, 77055, 77162, 103182, 110935, 947604

History

• 2024-09-16: Checked n = 100000 - 200000, Gary Barnes, released
• 2024-08-19: Reservation dropped, Paul Vanderveen
• 2021-03-08: Checked n = 1 - 100000, Paul Vanderveen
• 2021-03-08: Reserved by Paul Vanderveen
• 2018-05-27: Found n = 947604, Paul Vanderveen
• 2004-03-14: Found n = 110935, Peter Benson
• 2004-02-28: Found n = 103182, Peter Benson