Riesel primes of the form 43•2n-1

Current data

k , b : 43 , 2 Type : Low Count : 16 Nash : 633 Max n : 5,408,323 Date : 2022-02-28

7, 31, 67, 251, 767, 1171, 1643, 25423, 38863, 50867, 60391, 100303, 286171, 399767, 5408183, 9596983

History

• 2022-02-28: Found n = 9596983, Ryan Propper
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2018-04-15: Checked to n = 5408323, Borys Jaworski, released
• 2018-04-15: Found n = 5408183, Borys Jaworski
• 2018-02-02: Checked to n = 5380000, Borys Jaworski
• 2018-01-01: Checked to n = 5380000, Borys Jaworski
• 2017-12-02: Checked to n = 5380000, Borys Jaworski
• 2017-10-27: Checked to n = 5270000, Borys Jaworski
• 2017-07-02: Checked to n = 5210000, Borys Jaworski
• 2017-05-02: Checked to n = 5160000, Borys Jaworski
• 2017-04-01: Checked to n = 5130000, Borys Jaworski
• 2017-01-31: Checked to n = 5080000, Borys Jaworski
• 2017-01-01: Checked to n = 5060000, Borys Jaworski
• 2016-11-30: Checked to n = 5030000, Borys Jaworski
• 2016-11-01: Checked to n = 5000000, Borys Jaworski
• 2016-10-01: Checked to n = 4970000, Borys Jaworski
• 2016-08-31: Checked to n = 4940000, Borys Jaworski
• 2016-07-01: Checked to n = 4880000, Borys Jaworski
• 2016-06-01: Checked to n = 4840000, Borys Jaworski
• 2016-04-30: Checked to n = 4810000, Borys Jaworski
• 2016-03-31: Checked to n = 4770000, Borys Jaworski
• 2016-02-29: Checked to n = 4740000, Borys Jaworski
• 2016-02-01: Checked to n = 4710000, Borys Jaworski
• 2016-01-03: Checked to n = 4680000, Borys Jaworski
• 2015-11-30: Checked to n = 4650000, Borys Jaworski
• 2015-10-31: Checked to n = 4610000, Borys Jaworski
• 2015-08-31: Checked to n = 4570000, Borys Jaworski
• 2015-06-01: Checked to n = 4460000, Borys Jaworski
• 2015-05-01: Checked to n = 4410000, Borys Jaworski
• 2015-03-31: Checked to n = 4370000, Borys Jaworski
• 2015-02-28: Checked to n = 4320000, Borys Jaworski
• 2015-02-01: Checked to n = 4280000, Borys Jaworski
• 2015-01-03: Checked to n = 4230000, Borys Jaworski
• 2014-11-01: Checked to n = 4140000, Borys Jaworski
• 2014-09-30: Checked to n = 4080000, Borys Jaworski
• 2014-07-30: Checked to n = 3970000, Borys Jaworski
• 2014-06-30: Checked to n = 3920000, Borys Jaworski
• 2014-05-01: Checked to n = 3810000, Borys Jaworski
• 2014-03-31: Checked to n = 3750000, Borys Jaworski
• 2014-03-01: Checked to n = 3710000, Borys Jaworski
• 2013-11-30: Checked to n = 3600000, Borys Jaworski
• 2013-10-31: Checked to n = 3570000, Borys Jaworski
• 2013-09-30: Checked to n = 3540000, Borys Jaworski
• 2013-07-31: Checked to n = 3470000, Borys Jaworski
• 2013-07-01: Checked to n = 3440000, Borys Jaworski
• 2013-06-02: Checked to n = 3400000, Borys Jaworski
• 2013-04-01: Checked to n = 3310000, Borys Jaworski
• 2013-03-02: Checked to n = 3270000, Borys Jaworski
• 2013-01-31: Checked to n = 3230000, Borys Jaworski
• 2012-12-01: Checked to n = 3150000, Borys Jaworski
• 2012-11-01: Checked to n = 3100000, Borys Jaworski
• 2012-09-30: Checked to n = 3040000, Borys Jaworski
• 2012-08-30: Checked to n = 2980000, Borys Jaworski
• 2012-06-30: Checked to n = 2920000, Borys Jaworski
• 2012-06-01: Checked to n = 2910000, Borys Jaworski
• 2012-04-30: Checked to n = 2870000, Borys Jaworski
• 2012-03-31: Checked to n = 2850000, Borys Jaworski
• 2012-02-29: Checked to n = 2820000, Borys Jaworski
• 2012-01-31: Checked to n = 2800000, Borys Jaworski
• 2011-12-31: Checked to n = 2770000, Borys Jaworski
• 2011-11-30: Checked to n = 2750000, Borys Jaworski
• 2011-10-31: Checked to n = 2730000, Borys Jaworski
• 2011-09-30: Checked to n = 2700000, Borys Jaworski
• 2011-09-01: Checked to n = 2680000, Borys Jaworski
• 2011-06-30: Checked to n = 2620000, 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 = 2470000, Borys Jaworski
• 2010-11-30: Checked to n = 2420000, Borys Jaworski
• 2010-10-31: Checked to n = 2380000, Borys Jaworski
• 2010-09-30: Checked to n = 2340000, Borys Jaworski
• 2010-09-01: Checked to n = 2310000, Borys Jaworski
• 2010-08-01: Checked to n = 2270000, Borys Jaworski
• 2010-06-30: Checked to n = 2220000, Borys Jaworski
• 2010-05-31: Checked to n = 2170000, Borys Jaworski
• 2010-04-30: Checked to n = 2120000, Borys Jaworski
• 2010-03-31: Checked to n = 2070000, Borys Jaworski
• 2010-02-28: Checked to n = 2010000, Borys Jaworski
• 2010-01-31: Checked to n = 1960000, Borys Jaworski
• 2009-12-31: Checked to n = 1900000, Borys Jaworski
• 2009-12-01: Checked to n = 1860000, Borys Jaworski
• 2009-10-31: Checked to n = 1790000, Borys Jaworski
• 2009-09-30: Checked to n = 1720000, Borys Jaworski
• 2009-08-31: sieving, Borys Jaworski
• 2009-07-31: sieving, Borys Jaworski
• 2009-07-02: Reserved by Borys Jaworski
• 2009-05-28: Checked to n = 1700000, Michael Curtis released
• 2009-03-13: Checked to n = 1530000, Michael Curtis
• 2009-02-13: Checked to n = 1340000, Michael Curtis
• 2009-01-10: Checked to n = 1325000, Michael Curtis
• 2008-10-23: Reserved by Michael Curtis
• 2008-07-07: Checked to n = 1000000, Gary Barnes released
• 2008-02-01: Checked to n = 705000, Gary Barnes
• 2008-01-10: Checked to n = 600000, Gary Barnes
• 2007-12-30: Checked to n = 800000, Jeffrey Sax
• 2004-11-09: Found n = 399767, Jeffrey Sax
• 2004-10-23: Found n = 286171, Jeffrey Sax
• 2000-04-17: Found n = 60391, Tom Kuechler
• 2000-04-06: Found n = 50867, Tom Kuechler
• 1998-07-28: Found n = 25423, Wilfrid Keller