Riesel primes of the form 699•2n-1

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

Current data

k , b : 699 , 2 Type : 3 Count : 44 Nash : 1956 Max n : 2,200,000 Date : 2024-07-30 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

3, 5, 20, 32, 35, 49, 53, 67, 96, 125, 132, 177, 185, 224, 257, 733, 896, 1325, 1496, 3464, 3708, 4595, 6908, 7265, 7448, 9296, 17275, 19009, 20844, 30169, 36860, 145715, 151365, 259195, 288145, 395825, 642289, 694497, 716977, 736845, 798544, 1644360, 1903573, 2201267

History

• 2024-08-04: Found n = 2201267, Göran Schmidt, NPLB Drive 18
• 2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
• 2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
• 2022-12-29: Found n = 1903573, Max Dettweiler
• 2021-12-03: Found n = 1644360, Timothy Sorbera
• 2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
• 2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
• 2010-11-20: Found n = 798544, Gary Barnes
• 2009-12-02: Found n = 736845, Karsten Bonath
• 2009-10-12: Found n = 716977, Karsten Bonath
• 2009-06-18: Found n = 694497, Vaughan Davies
• 2009-04-30: Found n = 642289, Gary Barnes
• 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
• 2008-03-14: Found n = 395825, Gary Barnes
• 2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
• 2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
• 2004-10-12: Found n = 259195, Steven Harvey
• 1998-10-28: Found n = 30169, Paul Jobling
• 1998-10-28: Found n = 20844, Paul Jobling
• 1998-10-28: Found n = 19009, Paul Jobling