Riesel primes of the form 6927•2ⁿ-1

Current data

14^[1], 56^[2], 62, 84, 146, 234, 368, 896, 2856, 2888, 3626, 5210, 6888, 8616, 10136, 12614, 43802, 44030, 51848, 72090, 490868, 743481^[3], 748532

Remarks :

For additional odd n history, see CRUS Liskovets-Gallot search at Riesel 13854•4ⁿ-1.

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, CRUS Liskovets-Gallot
2008-05-21: Checked to n = 700000 (only odd n), Gary Barnes, Conjectures 'R Us