Riesel primes of the form 2433•2n-1

Current data

k , b : 2433 , 2 Type : 3 Count : 29 Nash : 1703 Max n : 600,000 Date : 2023-07-11

3, 14, 30, 32, 48, 50, 66, 68, 426, 444, 498, 608, 726, 1572, 1904, 2892, 7404, 19968, 26360, 83672, 84200, 100016, 136958, 152832, 187140, 195206, 225908, 269234, 485340

Remarks :

History is for even-n only unless specified. For odd-n history, see Conjectures 'R Us search for 19464*4^n-1 at Riesel 4866•4n-1.

History

• 2023-07-11: Checked to n = 10000000 (only odd n), (SRBase), Conjectures 'R Us
• 2012-02-18: Checked to n = 425000, NPLB Drive 12C, released
• 2012-01-06: Reserved by NPLB Drive 12C, for 350001 ≤ n ≤ 425000
• 2012-01-03: Checked to n = 350000, NPLB Drive 12B, released
• 2010-11-19: Checked to n = 600000, NPLB Drive 11, released
• 2010-03-26: Reserved by NPLB Drive 12B, for 250001 ≤ n ≤ 350000
• 2010-01-05: Checked to n = 250000, NPLB Drive 12A, released
• 2009-12-18: Checked n = 20000 - 50000, Karsten Bonath
• 2009-09-23: Found n = 485340, Gary Barnes, NPLB Drive 11
• 2009-08-13: Reserved by NPLB Drive 12A, for 50001 ≤ n ≤ 250000
• 2009-06-28: Checked n = 10000 - 20000, Thomas Ritschel
• 2009-06-22: Reserved by NPLB Drive 11, for 425001 ≤ n ≤ 600000