Generalized Woodall primes of the form n•128n-1

Current data

ASCII format : n*128^n-1 Base : 128 Count : 10 Max n : 286,000 Date : 2024-02-13

1, 6, 9, 19, 765, 861, 1741, 27291, 179450, 2329989

History

• 2024-02-13: Found n = 2329989, Ryan Propper, Serge Batalov
• 2014-03-13: Checked to n = 25000, Steven Harvey, double-check
• 2013-10-30: Checked n = 145000 - 286000, Steven Harvey
• 2012-12-10: Found n = 179450, Steven Harvey
• 2012-11-15: Reserved by Steven Harvey to n = 285714
• 2011-10-27: Checked to n = 25000, Thomas Ritschel
• 2010-11-01: Checked n = 127 - 4000, Steven Harvey, double-check
• 2009-03-02: Checked n = 71000 - 145000, Steven Harvey
• 2008-09-26: Reserved by Steven Harvey to n = 142857
• 2005-02-09: Checked n = 10000 - 11000, Steven Harvey
• 2005-02-04: Reserved by Steven Harvey to n = 11000
• 2005-01-03: Checked n = 5000 - 10000, Mark Rodenkirch
• 2004-12-21: Reserved by Mark Rodenkirch to n = 10000
• 2004-12-21: Checked n = 127 - 5000, Mark Rodenkirch
• 2004-12-15: Reserved by Mark Rodenkirch to n = 6000
• 2004-12-03: Reserved by Mark Rodenkirch to n = 5000
• 2004-05-20: Checked to n = 71000, Steven Harvey
• 2001-10-31: Found n = 27291, Steven Harvey
• ?: Found n = 1741, Andrew Walker