Riesel primes of the form 6927•2n-1

Current data

k , b : 6927 , 2 Type : 3 Count : 23 Nash : 1399 Max n : 750,000 Date : 2022-07-17

14, 56, 62, 84, 146, 234, 368, 896, 2856, 2888, 3626, 5210, 6888, 8616, 10136, 12614, 43802, 44030, 51848, 72090, 490868, 743481, 748532

History

• 2022-07-17: Checked to n = 750000, Alexander Jones, released
• 2022-06-11: Reserved by Alexander Jones
• 2021-02-10: Checked to n = 700000, Norman D. Powell, released
• 2021-02-07: Checked to n = 600000, Norman D. Powell
• 2021-02-04: Checked to n = 500000, Norman D. Powell
• 2021-02-02: Reserved by Norman D. Powell
• 2011-11-24: Checked to n = 400000, Karsten Bonath
• 2011-09-20: Found n = 490868, Lennart Vogel, Twin Prime Search 480000
• 2008-05-22: Found n = 743481, Gary Barnes, first odd n-value for 6927•2ⁿ-1, see CRUS Liskovets-Gallot