Riesel primes of the form 263•2n-1

Reserved! This sequence is currently part of Multi Reservation 7: NPLB K300 Drive 1.

Current data

k , b : 263 , 2 Count : 27 Nash : 1215 Max n : 2,800,000 Date : 2024-11-13 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 6, 26, 114, 134, 180, 542, 882, 936, 2382, 3702, 5082, 6722, 15590, 19910, 26964, 29148, 48062, 54870, 69642, 73788, 79922, 95460, 215712, 916202, 1587302, 1904406

History

• 2024-04-23: Reserved by NPLB K300 Drive 1 for n > 2000000
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2015-04-04: Checked to n = 2000000, Thomas Ritschel, released
• 2015-04-04: Found n = 1904406, Thomas Ritschel
• 2015-04-01: Reserved by Thomas Ritschel from n=1615000-2000000
• 2012-10-21: Checked to n = 1615000, Oscar Tutusaus Santandreu, released
• 2012-08-28: Found n = 1587302, Oscar Tutusaus Santandreu
• 2012-08-28: 1587306 mistyped, Oscar Tutusaus Santandreu, deleted
• 2012-08-14: Checked to n = 1580000, Oscar Tutusaus Santandreu
• 2012-07-14: Checked to n = 1530000, Oscar Tutusaus Santandreu
• 2012-06-06: Checked to n = 1450000, Oscar Tutusaus Santandreu
• 2012-05-10: Reserved by Oscar Tutusaus Santandreu from n=1400000
• 2011-02-23: Checked to n = 1400000, Michael Curtis, released
• 2010-10-28: Checked to n = 1330000, Michael Curtis
• 2010-03-21: Checked to n = 1100000, Michael Curtis
• 2010-01-24: Checked to n = 1015000, Michael Curtis
• 2010-01-12: Checked to n = 960000, Michael Curtis
• 2009-10-14: Checked to n = 955000, Michael Curtis
• 2009-08-28: Reserved by Michael Curtis
• 2009-08-27: Checked to n = 941000, Michael Kwok results given, released
• 2009-02-13: Reserved by Michael Kwok from n=920000
• 2008-07-06: Checked to n = 920000, Borys Jaworski released
• 2008-07-03: Found n = 916202, Borys Jaworski
• 2008-03-01: Checked to n = 740000, Borys Jaworski
• 2008-02-09: Checked to n = 700000, Borys Jaworski
• 2008-02-03: Checked to n = 690000, Borys Jaworski
• 2008-01-12: Checked to n = 650000, Borys Jaworski
• 2008-01-06: Checked to n = 640000, Borys Jaworski
• 2007-10-01: Reserved by Borys Jaworski
• 2006-12-16: Checked to n = 600000, RPS Drive 4, released
• 2006-07-28: Reserved by RPS Drive 4, for n = 260000 - 600000
• 2004-04-03: Found n = 215712, Kimmo Herranen