Riesel primes of the form 12587•2n-1

Current data

k , b : 12587 , 2  (sieve) Type : Low Count : 7 Nash : 591 Max n : 1,000,000 Date : 2023-10-03

14, 34, 38, 98, 538, 26638, 2462524

Remarks :

For additional n ≡ 0 mod 4 history, see Conjectures 'R Us search at Riesel 12587•16n-1. Available sieve file: n = 500000 - 2500000, P=100T, 23869 candidates

History

• 2023-10-03: Checked n = 600000 - 1000000 only n !≡ 0 mod 4, Alexander Jones, released
• 2023-09-27: Checked n = 500000 - 600000 only n !≡ 0 mod 4, Alexander Jones
• 2023-09-27: Reserved by Alexander Jones
• 2021-11-11: Sieve file created: n = 500000 - 2500000, Alexander Jones, released
• 2021-10-22: Checked n = 150000 - 500000, Alexander Jones
• 2021-10-11: Reserved by Alexander Jones
• 2021-10-09: Checked n = 50000 - 150000, Alexander Jones
• 2021-08-16: Checked n = 1 - 50000, Alexander Jones
• 2017-05-24: Checked n = 2400000 - 2462524 only n ≡ 0 mod 4, Kenneth Egtved Pedersen, Conjectures 'R Us
• 2017-05-24: Found n = 2462524, Kenneth Egtved Pedersen, Conjectures 'R Us
• 2011-11-23: Checked n = 1 - 20000, Thomas Ritschel