Riesel primes of the form 183•2n-1

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

Current data

k , b : 183 , 2 Type : 3 Count : 35 Nash : 1685 Max n : 2,800,000 Date : 2024-11-13 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

4, 11, 22, 31, 52, 56, 59, 67, 88, 104, 251, 572, 724, 1379, 2696, 3616, 3928, 8518, 9239, 9419, 10547, 20396, 42136, 43936, 69422, 313127, 330275, 358568, 411974, 1095896, 1219415, 1618775, 1707182, 2433172, 2626880

History

• 2024-08-31: Found n = 2626880, Gary Barnes, NPLB K300 Drive 1
• 2024-06-14: Found n = 2433172, Gary Barnes, NPLB K300 Drive 1
• 2024-05-16: Reserved by NPLB K300 Drive 1 for n > 2300000
• 2022-04-10: Checked to n = 2300000, RPS Megabit Drive 2
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2019-08-18: Checked to n = 2200000, RPS Megabit Drive 2
• 2014-06-18: Found n = 1707182, Carlos Eduardo Pinho, RPS Megabit Drive 2
• 2014-05-21: Found n = 1618775, Carlos Eduardo Pinho, RPS Megabit Drive 2
• 2011-07-14: Found n = 1219415, Larry Soule, RPS Megabit Drive 2
• 2011-06-20: Found n = 1095896, Serge Batalov, RPS Megabit Drive 2
• 2011-04-28: Reserved by RPS Megabit Drive 2 for n > 1000000
• 2009-09-15: Checked n = 700000 - 1000000, RPS Drive 9ks, released
• 2007-12-03: Reserved by RPS Drive 9ks for n = 700000 - 1000000
• 2007-02-02: Checked to n = 700000, Thomas Masser, released
• 2005-10-05: Checked to n = 700000, Thomas Masser
• 2005-03-28: Found n = 411974, Thomas Masser
• 2005-03-11: Found n = 358568, Thomas Masser
• 2005-02-14: Found n = 313127, Thomas Masser
• 2005-02-11: Found n = 330275, Thomas Masser
• 2005-01-06: Checked to n = 300000, Thomas Masser
• 2005-01-04: Checked n = 200000  -  <300000, Thomas Masser
• 2004-07-08: Checked to n = 200000, Thomas Masser
• 2004-06-06: Reserved by Thomas Masser
• 1998-11-05: Found n = 43936, Kimmo Herranen
• 1998-11-05: Found n = 42136, Kimmo Herranen
• 1998-10-10: Found n = 20396, Wilfrid Keller