Riesel primes of the form 25•2n-1

Current data

k , b : 25 , 2 Count : 39 Nash : 1571 Max n : 5,660,000 Date : 2024-04-19

3, 9, 11, 17, 23, 35, 39, 75, 105, 107, 155, 161, 215, 225, 335, 635, 651, 687, 1479, 1515, 1953, 2435, 2963, 3671, 5979, 7551, 8091, 9791, 15015, 20897, 26279, 43371, 130407, 587585, 716769, 942563, 1977369, 5152151, 5658915

Remarks :

The sequence A050538 in OEIS

History

• 2024-04-19: Reservation dropped, Borys Jaworski
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2021-01-26: Checked to n = 5660000, Borys Jaworski
• 2021-01-26: Found n = 5658915, Borys Jaworski
• 2020-04-04: Checked to n = 5190000, Borys Jaworski
• 2020-02-19: Found n = 5152151, Borys Jaworski
• 2020-01-03: Checked to n = 4930000, Borys Jaworski
• 2019-10-05: Checked to n = 4660000, Borys Jaworski
• 2019-09-05: Checked to n = 4650000, Borys Jaworski
• 2019-03-01: Checked to n = 4530000, Borys Jaworski
• 2019-01-01: Checked to n = 4490000, Borys Jaworski
• 2018-11-30: Checked to n = 4470000, Borys Jaworski
• 2018-11-01: Checked to n = 4450000, Borys Jaworski
• 2018-09-02: Checked to n = 4410000, Borys Jaworski
• 2018-05-03: Checked to n = 4330000, Borys Jaworski
• 2018-02-02: Checked to n = 4260000, Borys Jaworski
• 2018-01-01: Checked to n = 4250000, Borys Jaworski
• 2017-12-02: Checked to n = 4230000, Borys Jaworski
• 2017-10-27: Checked to n = 4200000, Borys Jaworski
• 2017-07-02: Checked to n = 4140000, Borys Jaworski
• 2017-05-02: Checked to n = 4090000, Borys Jaworski
• 2017-04-01: Checked to n = 4060000, Borys Jaworski
• 2017-01-31: Checked to n = 4010000, Borys Jaworski
• 2017-01-01: Checked to n = 3990000, Borys Jaworski
• 2016-11-30: Checked to n = 3960000, Borys Jaworski
• 2016-11-01: Checked to n = 3940000, Borys Jaworski
• 2016-10-01: Checked to n = 3900000, Borys Jaworski
• 2016-08-31: Checked to n = 3880000, Borys Jaworski
• 2016-07-01: Checked to n = 3820000, Borys Jaworski
• 2016-06-01: Checked to n = 3790000, Borys Jaworski
• 2016-04-30: Checked to n = 3760000, Borys Jaworski
• 2016-03-31: Checked to n = 3730000, Borys Jaworski
• 2016-02-29: Checked to n = 3700000, Borys Jaworski
• 2016-02-01: Checked to n = 3670000, Borys Jaworski
• 2016-01-03: Checked to n = 3640000, Borys Jaworski
• 2015-11-30: Checked to n = 3620000, Borys Jaworski
• 2015-10-31: Checked to n = 3600000, Borys Jaworski
• 2015-08-31: Checked to n = 3540000, Borys Jaworski
• 2015-06-01: Checked to n = 3450000, Borys Jaworski
• 2015-05-01: Checked to n = 3410000, Borys Jaworski
• 2015-03-31: Checked to n = 3370000, Borys Jaworski
• 2015-02-28: Checked to n = 3340000, Borys Jaworski
• 2015-02-01: Checked to n = 3310000, Borys Jaworski
• 2015-01-03: Checked to n = 3280000, Borys Jaworski
• 2014-11-01: Checked to n = 3230000, Borys Jaworski
• 2014-09-30: Checked to n = 3190000, Borys Jaworski
• 2014-07-30: Checked to n = 3150000, Borys Jaworski, doublecheck
• 2014-06-30: Checked to n = 3150000, Borys Jaworski
• 2014-05-01: Checked to n = 3110000, Borys Jaworski
• 2014-03-31: Checked to n = 3080000, Borys Jaworski
• 2014-03-01: Checked to n = 3050000, Borys Jaworski
• 2013-11-30: Checked to n = 3030000, Borys Jaworski
• 2013-10-31: Checked to n = 3030000, Borys Jaworski
• 2013-09-30: Checked to n = 3030000, Borys Jaworski
• 2013-07-31: Checked to n = 3030000, Borys Jaworski
• 2013-07-01: Checked to n = 3020000, Borys Jaworski
• 2013-06-02: Checked to n = 3010000, Borys Jaworski
• 2013-04-01: Checked to n = 2990000, Borys Jaworski
• 2013-03-02: Checked to n = 2980000, Borys Jaworski
• 2013-01-31: Checked to n = 2960000, Borys Jaworski
• 2012-12-01: Checked to n = 2930000, Borys Jaworski
• 2012-11-01: Checked to n = 2910000, Borys Jaworski
• 2012-09-30: Checked to n = 2900000, Borys Jaworski
• 2012-08-30: Checked to n = 2880000, Borys Jaworski
• 2012-06-30: Checked to n = 2850000, Borys Jaworski
• 2012-06-01: Checked to n = 2830000, Borys Jaworski
• 2012-04-30: Checked to n = 2810000, Borys Jaworski
• 2012-03-31: Checked to n = 2790000, Borys Jaworski
• 2012-02-29: Checked to n = 2770000, Borys Jaworski
• 2012-01-31: Checked to n = 2750000, Borys Jaworski
• 2011-12-31: Checked to n = 2730000, Borys Jaworski
• 2011-11-30: Checked to n = 2710000, Borys Jaworski
• 2011-10-31: Checked to n = 2690000, Borys Jaworski
• 2011-09-30: Checked to n = 2670000, Borys Jaworski
• 2011-09-01: Checked to n = 2650000, Borys Jaworski
• 2011-06-30: Checked to n = 2610000, Borys Jaworski
• 2011-06-01: Checked to n = 2590000, Borys Jaworski
• 2011-03-31: Checked to n = 2540000, Borys Jaworski
• 2011-02-28: Checked to n = 2520000, Borys Jaworski
• 2011-01-31: Checked to n = 2500000, Borys Jaworski
• 2011-01-03: Checked to n = 2490000, Borys Jaworski
• 2010-11-30: Checked to n = 2460000, Borys Jaworski
• 2010-10-31: Checked to n = 2440000, Borys Jaworski
• 2010-09-30: Checked to n = 2430000, Borys Jaworski
• 2010-09-01: Checked to n = 2420000, Borys Jaworski
• 2010-08-01: Checked to n = 2400000, Borys Jaworski
• 2010-06-30: Checked to n = 2390000, Borys Jaworski
• 2010-05-31: Checked to n = 2370000, Borys Jaworski
• 2010-04-30: Checked to n = 2360000, Borys Jaworski
• 2010-03-31: Checked to n = 2340000, Borys Jaworski
• 2010-02-28: Checked to n = 2330000, Borys Jaworski
• 2010-01-31: Checked to n = 2320000, Borys Jaworski
• 2009-12-31: Checked to n = 2290000, Borys Jaworski
• 2009-12-01: Checked to n = 2280000, Borys Jaworski
• 2009-10-31: Checked to n = 2260000, Borys Jaworski
• 2009-09-30: Checked to n = 2240000, Borys Jaworski
• 2009-08-31: Checked to n = 2230000, Borys Jaworski
• 2009-07-31: Checked to n = 2210000, Borys Jaworski
• 2009-06-30: Checked to n = 2190000, Borys Jaworski
• 2009-05-31: Checked to n = 2170000, Borys Jaworski
• 2009-04-30: Checked to n = 2150000, Borys Jaworski
• 2009-03-27: Checked to n = 2130000, Borys Jaworski
• 2009-02-26: Checked to n = 2110000, Borys Jaworski
• 2009-01-29: Checked to n = 2090000, Borys Jaworski
• 2009-01-09: Checked to n = 2080000, Borys Jaworski
• 2008-10-07: Found n = 1977369, Borys Jaworski
• 2008-02-22: Checked to n = 1500000, Borys Jaworski
• 2008-01-21: Checked to n = 1400000, Borys Jaworski
• 2007-12-25: Checked to n = 1300000, Borys Jaworski
• 2007-12-02: Checked to n = 1200000, Borys Jaworski
• 2007-10-21: Checked to n = 1100000, Borys Jaworski
• 2006-10-28: Found n = 942563, Borys Jaworski
• 2006-05-20: Found n = 716769, Borys Jaworski
• 2006-02-05: Found n = 587585, Borys Jaworski
• 1999-06-05: Found n = 43371, Michael J. Graef
• 1998-08-08: Found n = 26279, Wilfrid Keller
• 1998-08-08: Found n = 20897, Wilfrid Keller
• 1994: Found n = 7551, Harvey Dubner