Riesel primes of the form 683•2n-1

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

Current data

k , b : 683 , {{{Rb}}} Count : 32 Nash : 1396 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

2, 6, 12, 44, 48, 56, 146, 252, 338, 344, 452, 462, 666, 738, 798, 3756, 9702, 20196, 24774, 38432, 48042, 68216, 118836, 138704, 222356, 222606, 241098, 373922, 670454, 861716, 937166, 1491446

[[Category:Riesel {{{Rb}}}|#.....00683]]

History

• 2017-12-22: Found n = 1491446, Max Dettweiler
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-01-07: Found n = 937166, Lennart Vogel
• 2010-12-20: Found n = 861716, Scott Gilvey
• 2009-05-13: Found n = 670454, Gary Barnes
• 2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
• 2008-12-22: Checked to n = 600000, NPLB Drive 1, released
• 2008-12-19: Reserved by NPLB Drive 6, for 600000<n<=1000000
• 2008-03-25: Checked to n = 333200, NPLB Drive 2, released
• 2008-03-10: Found n = 373922, Chris Chatfield
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2005-08-08: Found n = 241098, Valerie Vonck
• 2004-12-24: Found n = 222606, Steven Harvey
• 2004-12-24: Found n = 222356, Steven Harvey
• 2003-04-21: Found n = 118836, Steven Harvey