Riesel primes of the form 127•128n-1

Current data

k , b : 127 , 128 Count : 0 Nash : 370 Max n : 2,450,000 Date : 2024-04-19

Remarks :

This sequence is independently searched only for n-values == 0 mod 7 of Riesel 127•2n-1. See also Williams 127•128n-1

History

• 2024-04-19: Reservation dropped, Borys Jaworski
• 2021-01-26: Checked to n = 2450000, Borys Jaworski
• 2020-04-04: Checked to n = 2220000, Borys Jaworski
• 2020-01-03: Checked to n = 2150000, Borys Jaworski
• 2019-10-05: Checked to n = 2080000, Borys Jaworski
• 2019-09-05: Checked to n = 2070000, Borys Jaworski
• 2019-03-01: Checked to n = 1950000, Borys Jaworski
• 2019-01-01: Checked to n = 1930000, Borys Jaworski
• 2018-11-30: Checked to n = 1880000, Borys Jaworski
• 2018-11-01: Checked to n = 1880000, Borys Jaworski
• 2018-09-02: Checked to n = 1860000, Borys Jaworski
• 2018-05-03: Checked to n = 1800000, Borys Jaworski
• 2018-02-02: Checked to n = 1740000, Borys Jaworski
• 2018-01-01: Checked to n = 1730000, Borys Jaworski
• 2017-12-02: Checked to n = 1720000, Borys Jaworski
• 2017-10-27: Checked to n = 1710000, Borys Jaworski
• 2017-07-02: Checked to n = 1660000, Borys Jaworski
• 2017-05-02: Checked to n = 1600000, Borys Jaworski
• 2017-04-01: Checked to n = 1590000, Borys Jaworski
• 2017-01-31: Checked to n = 1570000, Borys Jaworski
• 2017-01-01: Checked to n = 1530000, Borys Jaworski
• 2016-11-30: Checked to n = 1510000, Borys Jaworski
• 2016-11-01: Checked to n = 1500000, Borys Jaworski
• 2016-10-01: Checked to n = 1460000, Borys Jaworski
• 2016-08-31: Checked to n = 1420000, Borys Jaworski
• 2016-07-01: Checked to n = 1370000, Borys Jaworski
• 2016-06-01: Checked to n = 1340000, Borys Jaworski
• 2016-04-30: Checked to n = 1320000, Borys Jaworski
• 2016-03-31: Checked to n = 1290000, Borys Jaworski
• 2016-02-29: Checked to n = 1250000, Borys Jaworski
• 2016-02-01: Checked to n = 1210000, Borys Jaworski
• 2016-01-03: Checked to n = 1180000, Borys Jaworski
• 2015-11-30: Checked to n = 1120000, Borys Jaworski
• 2015-10-31: Checked to n = 1060000, Borys Jaworski
• 2015-08-31: Checked to n = 1050000, Borys Jaworski
• 2015-06-01: Checked to n = 1010000, Borys Jaworski
• 2015-05-01: Checked to n = 1000000, Borys Jaworski
• 2015-03-31: Checked to n = 990000, Borys Jaworski
• 2015-02-28: Checked to n = 980000, Borys Jaworski
• 2015-02-01: Checked to n = 970000, Borys Jaworski
• 2015-01-03: Checked to n = 950000, Borys Jaworski
• 2014-11-01: Checked to n = 930000, Borys Jaworski
• 2014-09-30: Checked to n = 920000, Borys Jaworski
• 2014-07-30: Checked to n = 890000, Borys Jaworski
• 2014-06-30: Checked to n = 880000, Borys Jaworski
• 2014-05-01: Checked to n = 850000, Borys Jaworski
• 2014-03-31: Checked to n = 830000, Borys Jaworski
• 2014-03-01: Checked to n = 820000, Borys Jaworski
• 2013-11-30: Checked to n = 780000, Borys Jaworski
• 2013-10-31: Checked to n = 770000, Borys Jaworski
• 2013-09-30: Checked to n = 760000, Borys Jaworski
• 2013-07-31: Checked to n = 725000, Borys Jaworski
• 2013-07-01: Checked to n = 715000, Borys Jaworski
• 2013-06-02: Checked to n = 700000, Borys Jaworski
• 2013-04-01: Checked to n = 660000, Borys Jaworski
• 2013-03-02: Checked to n = 640000, Borys Jaworski
• 2013-01-31: Checked to n = 620000, Borys Jaworski
• 2012-12-01: Checked to n = 580000, Borys Jaworski
• 2012-10-03: Checked to n = 528571, Michael Curtis
• 2012-10-02: Reserved by Borys Jaworski
• 2010-10-28: none, Michael Curtis
• 2010-03-21: Checked to n = 444285, Michael Curtis
• 2010-01-24: Checked to n = 385714, Michael Curtis
• 2010-01-12: Checked to n = 357142, Michael Curtis
• 2009-10-14: Checked to n = 344285, Michael Curtis
• 2009-09-01: Checked to n = 338571, Michael Curtis
• 2009-02-13: Checked to n = 291428, Michael Curtis
• 2009-01-10: Checked to n = 285714, Michael Curtis
• 2008-07-14: Checked to n = 264285, Michael Curtis
• 2008-04-30: Checked to n = 235714, Michael Curtis
• 2008-02-22: Checked to n = 207142, Michael Curtis
• 2008-01-13: Checked to n = 178571, Michael Curtis
• 2007-11-21: none, Michael Curtis
• 2007-10-24: Checked to n = 171428, Michael Curtis
• 2007-09-10: Checked to n = 160000, Michael Curtis
• 2007-08-24: Checked to n = 157142, Michael Curtis
• 2007-07-30: Checked to n = 145714, Michael Curtis
• 2007-04-11: Reserved by Michael Curtis to n=571428
• 2007-01-13: Checked to n = 142857, Michael Curtis, released
• 2006-11-06: Checked to n = 128571, Michael Curtis
• 2006-08-09: Checked to n = 100000, Michael Curtis
• 2006-05-11: Checked to n = 82142, Michael Curtis
• 2006-04-06: Reserved by Michael Curtis to n=142857
• 2006-04-02: Checked to n = 32857, (none)
• 2006-04-02: Reservation dropped, (Chaos)
• 2005-09-20: Reserved by (Chaos)
• 2004-04-29: Reserved by Thomas Masser