Riesel prime 2 205

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

Current data

k , b : 205 , 2 Count : 39 Nash : 1351 Max n : 2,600,000 Date : 2024-08-23 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

1, 9, 39, 45, 49, 67, 75, 99, 129, 159, 177, 445, 721, 771, 829, 849, 865, 1971, 3045, 8397, 9019, 10749, 21037, 30529, 38349, 46257, 53577, 64695, 77451, 128019, 420297, 462261, 749859, 756705, 1019679, 1275889, 1300401, 1537779, 1666435

History

• 2024-05-05: Reserved by NPLB K300 Drive 1 for n > 2200000
• 2022-03-09: Checked to n = 2222000, RPS Megabit Drive 3
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2014-06-03: Found n = 1666435, Serge Batalov, RPS Megabit Drive 3
• 2014-06-02: Found n = 1537779, Serge Batalov, RPS Megabit Drive 3
• 2014-05-30: Reserved by RPS Megabit Drive 3 for n > 1400000
• 2011-02-01: Checked to n = 1400000, RPS Drive 6, released
• 2010-11-19: Found n = 1300401, Carlos Eduardo Pinho, RPS Drive 6
• 2010-11-11: Found n = 1275889, Carlos Eduardo Pinho, RPS Drive 6
• 2008-11-27: Found n = 1019679, Even Stokkedalen, RPS Drive 6
• 2008-08-11: Found n = 756705, David Metcalfe, RPS Drive 6
• 2008-08-11: Found n = 749859, David Metcalfe, RPS Drive 6
• 2008-06-22: Reserved by RPS Drive 6, for n > 600000
• 2006-12-16: Checked to n = 600000, RPS Drive 4, released
• 2006-09-01: Found n = 462261, David Metcalfe, RPS Drive 4
• 2006-08-24: Found n = 420297, J. Craig Brunson, RPS Drive 4
• 2006-07-28: Reserved by RPS Drive 4, for n = 250000 - 600000
• 2004?: Checked to n = 250000, Mark Anderson, released
• 2004-06-04: Reserved by Mark Anderson, for n ≤ 250000