Riesel primes of the form 2175•2n-1

Reserved! This sequence is currently reserved by: Michael Curtis

Current data

k , b : 2175 , 2 Type : 315 Count : 78 Nash : 3128 Max n : 2,000,000 Date : 2024-06-24 Reserved : Michael CurtisMichael Curtis/Reserved

1, 2, 6, 8, 9, 11, 13, 14, 25, 33, 42, 43, 50, 65, 111, 121, 134, 138, 153, 221, 232, 233, 314, 471, 498, 645, 672, 793, 1002, 1701, 1789, 1898, 2029, 2493, 2573, 3570, 5598, 7753, 8010, 11142, 13409, 14096, 14243, 24201, 31873, 36265, 38550, 38942, 57231, 64065, 74009, 76293, 83741, 84233, 93078, 106442, 107318, 128058, 136985, 159486, 162240, 183243, 224093, 274393, 301200, 420511, 545721, 557361, 929651, 1076289, 1077285, 1176013, 1202773, 1266475, 1430261, 1466621, 1484389, 1512256

History

• 2024-06-24: Checked to n = 2000000, Michael Curtis
• 2020-03-13: Checked to n = 1560000, Michael Curtis
• 2019-03-31: Found n = 1430261, Michael Curtis
• 2019-03-15: Found n = 1512256, Michael Curtis
• 2019-02-23: Found n = 1484389, Michael Curtis
• 2017-06-20: Checked to n = 1330000, Michael Curtis
• 2015-05-18: Checked n = 600000-700000, Karsten Bonath
• 2015-04-05: Checked to n = 1270000, Michael Curtis
• 2015-02-26: Found n = 1466621, Michael Curtis
• 2014-11-26: Found n = 1202773, Michael Curtis
• 2013-04-29: Found n = 1266475, Michael Curtis
• 2013-03-27: Found n = 1176013, Michael Curtis
• 2012-02-18: Checked to n = 425000, NPLB Drive 12C, released
• 2012-01-03: Checked to n = 350000, NPLB Drive 12B, released
• 2011-12-31: Reserved by NPLB Drive 12C, for 350001 ≤ n ≤ 425000
• 2011-12-28: Found n = 1077285, Michael Curtis
• 2011-12-28: Found n = 1076289, Michael Curtis
• 2011-02-28: Found n = 929651, Michael Curtis
• 2010-11-11: Checked to n = 600000, Steven Tjung
• 2010-03-26: Reserved by NPLB Drive 12B, for 250001 ≤ n ≤ 350000
• 2010-01-05: Checked to n = 250000, NPLB Drive 12A, released
• 2009-12-18: Checked n = 20000-50000, Karsten Bonath
• 2009-09-25: Found n = 557361, Steven Tjung
• 2009-08-13: Reserved by NPLB Drive 12A, for 50001 ≤ n ≤ 250000
• 2009-07-23: Found n = 545721, Steven Tjung
• 2009-06-28: Checked n = 10000-20000, Thomas Ritschel
• 2009-03-16: Found n = 420511, Steven Tjung
• 2008-09-28: Checked to n = 400000, Steven Tjung
• 2008-02-02: Checked to n = 360000, Steven Tjung
• 2008-01-11: Checked to n = 300000, Michael Curtis
• 2008-01-03: Checked to n = 280000, Michael Curtis
• 2007-12-18: Checked to n = 240000, Michael Curtis
• 2007-08-07: Checked n = 10000-166000, Michael Curtis
• 2007-07-04: Checked to n = 160000, Michael Curtis
• 2007-07-04: Reserved by Michael Curtis