Riesel primes of the form 313•2n-1

Reserved! This sequence is currently part of Multi Reservation 7: NPLB K300 Drive 1.

Current data

k , b : 313 , 2 Count : 38 Nash : 1437 Max n : 2,800,000 Date : 2024-11-13 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

3, 7, 19, 27, 71, 99, 115, 159, 163, 183, 563, 771, 1107, 2807, 4795, 5091, 5223, 6763, 7359, 7535, 8055, 10531, 18843, 29559, 44003, 47307, 62203, 67363, 67767, 84179, 123731, 135463, 261255, 508091, 1137387, 1456431, 1703119, 2817751

History

• 2021-12-02: Found n = 2817751, Tore Zachariassen
• 2014-12-29: Reserved by NPLB Drive 15, for n=2000000-3000000
• 2013-04-04: Checked to n = 2000000, Lennart Vogel, released
• 2013-04-02: Found n = 1703119, Lennart Vogel
• 2013-04-01: Reserved by Lennart Vogel, for 1500000<n<2000000
• 2013-04-01: Found n = 1456431, Lennart Vogel
• 2013-03-31: Reserved by Lennart Vogel for 1300000<n<1500000
• 2012-10-10: Checked to n = 1300000, Gary Barnes, released
• 2012-09-25: Reserved by Gary Barnes, for 1200000<n<1300000
• 2011-06-26: Checked to n = 1202547, Johnathan Chu, released
• 2011-04-17: Checked to n = 1160000, Johnathan Chu
• 2011-03-19: Found n = 1137387, Johnathan Chu
• 2011-03-11: Checked to n = 1120000, Johnathan Chu
• 2011-02-09: Checked to n = 1090000, Johnathan Chu
• 2011-01-11: Checked to n = 1060000, Johnathan Chu
• 2010-12-07: Reserved by Johnathan Chu, to n=1100000
• 2010-11-27: Reserved by Johnathan Chu, for 1000000<n<1020000
• 2009-08-27: Checked to n = 1000000, Michael Kwok, released, results included
• 2009-07-25: Checked to n = 995000, Michael Kwok, results included
• 2009-06-06: Checked to n = 950000, Michael Kwok, results included
• 2009-05-12: Checked to n = 930000, Michael Kwok
• 2009-04-12: Checked to n = 900000, Michael Kwok, results included
• 2009-02-19: Checked to n = 836000, Michael Kwok, results included
• 2009-01-16: Checked to n = 780000, Michael Kwok, results included
• 2008-12-14: Checked to n = 710000, Michael Kwok, results included
• 2008-11-10: Checked to n = 600000, NPLB Drive 3, released
• 2008-11-01: Checked to n = 650000, Michael Kwok, results included
• 2008-09-10: Reserved by Michael Kwok, for 600000<n<1000000
• 2008-06-03: 508091 confirmed, Glenn C. Kaiser
• 2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
• 2007-08-23: Found n = 508091, Peter Benson
• 2003-06-03: Found n = 123731, Steven Harvey
• 2001-07-09: Found n = 84179, Sander Hoogendoorn
• 2001-02-20: Found n = 67767, Steven Harvey
• 2001-02-20: Found n = 67363, Steven Harvey
• 2001-02-20: Found n = 62203, Steven Harvey