Riesel primes of the form 15285•2n-1

Current data

k , b : 15285 , 2  (sieve) Type : 315 Count : 35 Nash : 1760 Max n : 500,000 Date : 2023-04-29

3, 6, 8, 12, 17, 18, 33, 35, 42, 140, 198, 273, 563, 836, 857, 1403, 2697, 8876, 16913, 20228, 81237, 101532, 114042, 139928, 140955, 163212, 210977, 224648, 294036, 298877, 337686, 370988, 422406, 473033, 496062

Remarks :

Available sieve file: n=150k–500k, P=500T, 11733 candidates

History

• 2023-04-29: Checked to n = 500000, Alexander Jones, released
• 2023-03-26: Sieve file created: n = 150000–500000, Alexander Jones, yoyo@home
• 2023-03-26: Reserved by Alexander Jones
• 2021-12-30: Checked to n = 150000, Alexander Jones
• 2021-05-18: Checked to n = 100000, Alexander Jones
• 2020-09-03: Checked to n = 50000, Karsten Bonath
• 2011-11-23: Checked to n = 1007, Gary Barnes
• 2011-10-30: Found n = 496062, Lennart Vogel, Twin Prime Search 480000