Riesel primes of the form 723•2n-1

Reserved! This sequence is currently part of Multi Reservation 3: NPLB Drive 18.

Current data

k , b : 723 , 2 Type : 3 Count : 50 Nash : 2615 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

3, 6, 10, 16, 22, 31, 58, 66, 103, 178, 192, 235, 303, 474, 639, 694, 1071, 1420, 1554, 2082, 2292, 2346, 2458, 3003, 3262, 5224, 5836, 9204, 13371, 24859, 32536, 37648, 43939, 55935, 73519, 73603, 77014, 100270, 149331, 194563, 276579, 281991, 357031, 533086, 709152, 974395, 1355919, 1410870, 1772872, 2173710

History

• 2024-04-14: Found n = 2173710, Göran Schmidt, NPLB Drive 18
• 2023-01-21: Reserved by NPLB Drive 18, for 2000000 < n ≤ 3000000
• 2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
• 2022-07-26: Found n = 1772872, Gary Barnes, NPLB Drive 14
• 2015-10-03: Found n = 1410870, Max Dettweiler, NPLB Drive 14
• 2014-10-14: Found n = 1355919, Lennart Vogel, NPLB Drive 14
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000 < n ≤ 2000000
• 2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
• 2011-01-11: Found n = 974395, Brian Lody, NPLB Drive 6
• 2009-08-09: Found n = 709152, Vaughan Davies, NPLB Drive 6
• 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
• 2008-12-19: Reserved by NPLB Drive 6, for 600000 < n ≤ 1000000
• 2008-09-04: Found n = 533086, Gary Barnes, NPLB Drive 1
• 2008-03-25: Checked to n = 333200, NPLB Drive 2, released
• 2008-02-18: Found n = 357031, Joshua David Addington, NPLB Drive 1
• 2008-01-22: Reserved by NPLB Drive 2, for 260000 ≤ n ≤ 333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201 ≤ n ≤ 600000
• 2005-01-02: Found n = 194563, Steven Harvey
• 2001-09-02: Found n = 100270, Kimmo Herranen
• 1998-11-13: Found n = 55935, Joe Eversole
• 1998-11-03: Found n = 37648, Thomas Nokleby
• 1998-11-03: Found n = 32536, Thomas Nokleby
• 1998-11-03: Found n = 24859, Thomas Nokleby