Riesel primes of the form 227•2n-1

Reserved! This sequence is currently part of Multi Reservation 6: CRUS Liskovets-Gallot.

Current data

k , b : 227 , 2 Count : 32 Nash : 2550 Max n : 5,000,000 Date : 2022-03-04 Reserved : Conjectures 'R UsConjectures 'R Us/Reserved

2, 4, 8, 12, 14, 26, 32, 80, 124, 230, 284, 562, 866, 1830, 2630, 3122, 3428, 6278, 9900, 19888, 20092, 22706, 29088, 31412, 44402, 47914, 53120, 102330, 135164, 299306, 345918, 1170724

History

• 2014-05-30: Reserved by RPS 3rd Megabit Drive for n > 1400000
• 2010-12-06: Checked to n = 1400000, David Metcalfe, released
• 2010-08-01: Checked to n = 1300000, David Metcalfe
• 2010-06-30: Checked to n = 1250000, David Metcalfe
• 2010-05-31: Found n = 1170724, David Metcalfe
• 2010-04-30: Checked to n = 1150000, David Metcalfe
• 2009-03-14: Checked to n = 1150000, David Metcalfe
• 2008-10-22: Checked to n = 1000000, NPLB Drive 4, released
• 2008-10-21: Checked to n = 1000000, David Metcalfe
• 2008-09-11: Reserved by David Metcalfe
• 2008-09-09: Reserved by NPLB Drive 4
• 2006-04-14: Found n = 345918, Larry Soule
• 2006-04-03: Found n = 299306, David Metcalfe
• 2000-05-05: Found n = 44402, Phil Carmody