Riesel primes of the form 117•2n-1

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

Current data

k , b : 117 , 2 Type : 3 Count : 71 Nash : 3581 Max n : 2,800,000 Date : 2024-11-13 Reserved : No Prime Left BehindNo Prime Left Behind/Reserved

1, 2, 4, 6, 12, 16, 18, 20, 22, 24, 37, 40, 48, 49, 57, 62, 154, 172, 184, 236, 265, 374, 409, 445, 478, 664, 718, 928, 1186, 1369, 1804, 2006, 2140, 2618, 4456, 4846, 12604, 17680, 18318, 18812, 20320, 20660, 21494, 24977, 27749, 30734, 31720, 41742, 51928, 54216, 60386, 61882, 64408, 72078, 111698, 129820, 135318, 151594, 225165, 373045, 511361, 560848, 697458, 834916, 877874, 1104138, 1210282, 1302764, 1554601, 1618434, 2117600

History

• 2024-05-16: Reserved by NPLB K300 Drive 1 for n > 2300000
• 2022-04-10: Checked to n = 2300000, RPS Megabit Drive 2
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2019-08-18: Checked to n = 2200000, RPS Megabit Drive 2
• 2019-03-30: Found n = 2117600, David Metcalfe, RPS Megabit Drive 2
• 2014-05-19: Found n = 1618434, Carlos Eduardo Pinho, RPS Megabit Drive 2
• 2013-11-15: Found n = 1554601, Predrag Kurtovic, RPS Megabit Drive 2
• 2011-08-15: Found n = 1302764, David Metcalfe, RPS Megabit Drive 2
• 2011-07-11: Found n = 1210282, Larry Soule, RPS Megabit Drive 2
• 2011-06-07: Found n = 1104138, David Metcalfe, RPS Megabit Drive 2
• 2011-04-28: Reserved by RPS Megabit Drive 2 for n > 1000000
• 2009-07-30: Reserved by Borys Jaworski for sieving only n=1000000-5000000
• 2008-07-04: Checked to n = 1000000, RPS Drive 5, released
• 2008-01-27: Found n = 877874, Adam Sutton, RPS Drive 5
• 2007-12-10: Found n = 834916, David Metcalfe, RPS Drive 5
• 2007-07-19: Found n = 697458, David Metcalfe, RPS Drive 5
• 2007-03-06: Found n = 560848, Predrag Minovic, RPS Drive 5
• 2007-01-23: Found n = 511361, David Metcalfe, RPS Drive 5
• 2006-11-12: Reserved by RPS Drive 5, for n > 438000
• 2005-01-16: Checked to n = 438000, Jeffrey Sax
• 2004-12-05: Found n = 373045, Jeffrey Sax
• 2004-11-28: Checked to n = 363000, Jeffrey Sax
• 2004-08-11: Found n = 225165, Jeffrey Sax
• 2004-03-28: Found n = 151594, Jeffrey Sax
• 2000-04-20: Found n = 72078, Phil Carmody
• 2000-03-13: Found n = 64408, Phil Carmody
• 2000-03-13: Found n = 61882, Phil Carmody
• 2000-03-13: Found n = 60386, Phil Carmody
• 2000-03-10: Found n = 54216, Phil Carmody
• 2000-03-10: Found n = 51928, Phil Carmody
• 2000-03-10: Found n = 41742, Phil Carmody
• 1989: Found n = 24977, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown