Riesel primes of the form 147•2n-1

Reserved! This sequence is currently part of Multi Reservation 5: CRUS Liskovets-Gallot.

Current data

k , b : 147 , 2 Type : 3 Count : 45 Nash : 2806 Max n : 5,000,000 Date : 2023-07-11 Reserved : Conjectures 'R UsConjectures 'R Us/Reserved

1, 2, 4, 5, 12, 25, 33, 40, 44, 53, 60, 74, 92, 133, 177, 397, 453, 669, 977, 2226, 2612, 3230, 3314, 5001, 5333, 5376, 7384, 7924, 10265, 18349, 19554, 21854, 30426, 33533, 49280, 70530, 92445, 105789, 177017, 198692, 212496, 464300, 1273684, 1374216, 1499333

History

• 2019-08-18: Checked to n = 2200000, RPS 2nd Megabit Drive
• 2013-04-12: Found n = 1499333, David Metcalfe, RPS 2nd Megabit Drive
• 2011-09-12: Found n = 1374216, David Metcalfe, RPS 2nd Megabit Drive
• 2011-08-08: Found n = 1273684, David Metcalfe, RPS 2nd Megabit Drive
• 2011-04-28: Reserved by RPS 2nd Megabit Drive for n > 1000000
• 2009-08-23: Checked to n = 1000000, Gary Barnes, Max Dettweiler, released
• 2009-08-11: Checked to n = 960000, Gary Barnes, Max Dettweiler
• 2009-04-28: Checked to n = 900000, Gary Barnes, Max Dettweiler
• 2009-02-06: Checked to n = 857000, Gary Barnes, Max Dettweiler
• 2009-01-23: Checked to n = 820000, Gary Barnes, Max Dettweiler
• 2009-01-18: Checked to n = 800000, Gary Barnes, Max Dettweiler
• 2008-12-25: Checked to n = 775000, Gary Barnes, Max Dettweiler
• 2008-11-28: Checked to n = 755000, Gary Barnes, Max Dettweiler
• 2008-10-31: Checked to n = 725000, Gary Barnes, Max Dettweiler
• 2008-09-21: Checked to n = 705000, Gary Barnes, Max Dettweiler
• 2008-09-08: Checked to n = 675000, Gary Barnes, Max Dettweiler
• 2008-03-27: Reserved by Max Dettweiler
• 2008-02-24: Checked to n = 600000, Chris Chatfield
• 2007-12-09: Checked to n = 572000, Chris Chatfield
• 2007-11-05: Reserved by Chris Chatfield
• 2006-04-15: Found n = 464300, Thomas Ritschel
• 2004-07-01: Found n = 198692, Mark Anderson
• 2004-06-21: Found n = 177017, Mark Anderson
• 1998-11-30: Found n = 49280, Chris Caldwell