Riesel primes of the form 489•2n-1

Reserved! This sequence is currently part of Multi Reservation 8: NPLB Drive 17.

Current data

k , b : 489 , {{{Rb}}} Count : Attention! Parameter RCount=67 not given! Nash : 3058 Max n : 2,820,000 Date : 2024-03-09 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

1, 3, 4, 5, 7, 8, 17, 20, 31, 32, 39, 41, 48, 51, 63, 75, 99, 151, 187, 228, 229, 275, 312, 347, 391, 419, 697, 723, 1049, 1323, 1331, 1447, 2219, 2704, 3447, 3759, 3851, 4227, 8391, 10828, 14365, 18103, 19308, 27400, 31463, 48145, 50588, 50639, 62267, 86120, 93329, 102447, 108411, 157127, 173060, 191415, 204980, 225992, 270948, 299331, 307544, 311952, 343303, 407751, 780040, 1041511, 1456683

[[Category:Riesel {{{Rb}}}|#.....00489]]

History

• 2017-05-09: Found n = 1456683, Jussi Heino
• 2011-09-19: Found n = 1041511, Chris Chatfield
• 2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
• 2010-11-11: Checked to n = 1000000, NPLB Drive 5
• 2010-05-01: 780040 confirmed, Lennart Vogel
• 2009-07-31: Found n = 780040, Marco Micheli
• 2008-12-22: Checked to n = 600000, NPLB Drive 1
• 2008-12-19: Reserved by NPLB Drive 5, for 600000<n<1000000
• 2008-03-25: Checked to n = 333200, NPLB Drive 2
• 2008-03-11: Found n = 407751, James P. Burt
• 2008-02-04: Found n = 343303, Carlos Eduardo Pinho
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2004-11-15: Found n = 225992, Steven Harvey
• 2004-11-12: Found n = 204980, Steven Harvey
• 2004-11-12: Found n = 191415, Steven Harvey
• 2004-07-16: Found n = 173060, Steven Harvey
• 2004-03-25: Found n = 157127, Thomas Masser
• 2002-10: Found n = 108411, Steven Harvey
• 2002-10: Found n = 102447, Steven Harvey
• 2001-12-13: Found n = 93329, Kimmo Herranen
• 2001-12-12: Found n = 86120, Kimmo Herranen