Riesel primes of the form 2145•2n-1

Reserved! This sequence is currently reserved by: Michael Curtis

Current data

k , b : 2145 , 2 Type : 3152145 Count : 89 Nash : 5348 Max n : 1,560,000 Date : 2024-06-24 Reserved : Michael CurtisMichael Curtis/Reserved

1, 3, 4, 5, 6, 15, 16, 17, 32, 38, 75, 77, 89, 103, 118, 129, 318, 327, 346, 472, 477, 503, 504, 549, 575, 652, 654, 767, 809, 833, 856, 876, 880, 974, 1140, 1145, 1253, 1924, 2255, 2467, 2537, 2776, 3409, 4034, 4927, 6422, 6803, 9159, 10238, 12404, 15075, 15926, 20148, 23550, 24879, 25527, 35062, 35387, 73217, 83553, 94980, 115899, 138411, 139373, 140432, 167614, 213621, 214257, 214994, 323459, 345415, 372766, 414996, 425089, 430852, 625146, 806211, 823312, 851159, 861356, 905006, 936349, 959905, 973949, 1090281, 1226291, 1285230, 1298957, 1497137

History

• 2024-06-24: Checked to n = 1560000, Michael Curtis
• 2020-03-13: Checked to n = 1560000, Michael Curtis
• 2017-08-07: Found n = 1497137, Kristine Wozny
• 2017-06-20: Checked to n = 1360000, Michael Curtis
• 2015-04-05: Checked to n = 1360000, Michael Curtis
• 2015-02-15: Found n = 1298957, Steven Tjung
• 2015-02-09: Found n = 1285230, Steven Tjung
• 2013-06-21: Found n = 973949, Steven Tjung
• 2013-05-05: Found n = 1226291, Michael Curtis
• 2012-12-07: Found n = 959905, Steven Tjung
• 2012-02-18: Checked to n = 425000, NPLB Drive 12C, released
• 2012-01-09: Found n = 905006, Michael Curtis
• 2012-01-03: Checked to n = 350000, NPLB Drive 12B, released
• 2011-12-31: Reserved by NPLB Drive 12C, for 350001 ≤ n ≤ 425000
• 2011-12-15: Found n = 936349, Steven Tjung
• 2011-11-21: Found n = 861356, Michael Curtis
• 2011-08-25: Found n = 823312, Steven Tjung
• 2011-08-25: Found n = 806211, Steven Tjung
• 2011-08-07: Found n = 1090281, Michael Curtis
• 2010-12-24: Found n = 625146, Kristine Wozny
• 2010-11-19: Checked to n = 600000, NPLB Drive 11, released
• 2010-11-15: Found n = 851159, Michael Curtis
• 2010-11-10: Reserved by 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
• 2009-08-13: Reserved by NPLB Drive 12A, for 50001 ≤ n ≤ 250000
• 2009-06-28: Checked n = 10000 - 20000, Thomas Ritschel
• 2009-06-28: 430852 confirmed, Gary Barnes, NPLB Drive 11
• 2009-06-23: 425089 confirmed, Gary Barnes, NPLB Drive 11
• 2009-06-22: Reserved by NPLB Drive 11, for 425001 ≤ n ≤ 600000
• 2008-01-29: Checked to n = 600000, Gary Barnes, released
• 2007-12-27: Checked to n = 525000, Gary Barnes
• 2007-11-30: Checked to n = 435000, Gary Barnes
• 2007-11-28: Found n = 430852, Gary Barnes
• 2007-11-27: Found n = 425089, Gary Barnes
• 2007-11-26: Found n = 414996, Gary Barnes
• 2007-11-21: Checked to n = 400000, Gary Barnes
• 2007-10-28: Checked to n = 386900, Gary Barnes
• 2007-10-15: Found n = 372766, Gary Barnes
• 2007-09-30: Checked to n = 354000, Gary Barnes
• 2007-09-24: Found n = 345415, Gary Barnes
• 2007-08-20: Checked to n = 280000, Gary Barnes
• 2007-08-09: Checked to n = 242000, Gary Barnes
• 2007-08-07: Checked n = 10000 - 166000, Michael Curtis
• 2007-07-27: Checked to n = 240000, Gary Barnes
• 2007-07-24: Checked to n = 225000, Gary Barnes, double-check 200001 ≤ n ≤ 214994
• 2007-07-15: Checked to n = 200000, Gary Barnes, double-check
• 2007-07-14: Checked to n = 180000, Gary Barnes, double-check
• 2007-07-09: Checked to n = 120000, Gary Barnes, double-check n ≤ 50000 and 115899 ≤ n ≤ 120000
• 2007-07-04: Checked to n = 160000, Michael Curtis
• 2007-07-04: Reserved by Gary Barnes
• 2004-07-08: Found n = 214994, Thomas Ritschel
• 2004-07-08: Found n = 214257, Thomas Ritschel
• 2004-07-08: Found n = 213621, Thomas Ritschel
• 2003-06-02: Found n = 140432, Thomas Ritschel
• 2003-06-02: Found n = 139373, Thomas Ritschel
• 2003-06-02: Found n = 138411, Thomas Ritschel
• 2003-05-31: Found n = 115899, Thomas Ritschel
• 1998-10-13: Found n = 24879, Ray Ballinger