Riesel primes of the form 189•2n-1

Reserved! This sequence is currently part of Multi Reservation 5: RPS 2nd Megabit Drive.

Current data

k , b : 189 , 2 Type : 3 Count : 62 Nash : 2793 Max n : 2,300,000 Date : 2022-04-20 Reserved : Riesel Prime SearchRiesel Prime Search/Reserved

3, 4, 5, 8, 11, 12, 24, 33, 44, 48, 56, 76, 93, 108, 172, 216, 304, 363, 401, 420, 500, 545, 581, 756, 875, 1552, 1931, 2740, 2787, 2825, 3443, 5235, 8444, 10523, 12755, 14585, 21161, 24404, 25880, 31316, 31965, 32040, 34233, 34323, 36443, 54436, 69403, 175901, 213856, 235068, 237968, 239891, 246356, 255372, 323900, 480835, 487601, 496835, 888200, 891876, 984683, 1547744

History

• 2019-08-18: Checked to n = 2200000, RPS 2nd Megabit Drive
• 2014-01-27: Found n = 1547744, Carlos Eduardo Pinho, RPS 2nd Megabit Drive
• 2011-04-28: Reserved by RPS 2nd Megabit Drive for n > 1000000
• 2009-08-10: Found n = 984683, Carlos Eduardo Pinho
• 2009-06-10: Found n = 891876, Adam Sutton
• 2009-06-05: Found n = 888200, Predrag Minovic
• 2007-11-01: Checked n = 700000-770000, Predrag Minovic
• 2005-04-16: Found n = 480835, Thomas Masser
• 2005-04-02: Found n = 487601, Thomas Masser
• 2005-04-01: Found n = 496835, Thomas Masser
• 2005-02-25: Found n = 323900, Thomas Masser
• 2004-12-31: Found n = 255372, Thomas Masser
• 2004-12-31: Found n = 246356, Thomas Masser
• 2004-12-15: Found n = 239891, Thomas Masser
• 2004-12-14: Found n = 237968, Thomas Masser
• 2004-12-13: Found n = 235068, Thomas Masser
• 2004-12-02: Found n = 213856, Thomas Masser
• 2004-08-12: Found n = 175901, Steven Harvey
• 1989: Found n = 34233, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown
• 1989: Found n = 31965, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown
• 1989: Found n = 24404, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown
• 1989: Found n = 21161, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown
• 1989: Found n = 14585, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown