Generalized Woodall primes of the form n•512n-1

Current data

ASCII format : n*512^n-1 Base : 512 Count : 6 Max n : 222,000 Date : 2024-02-03

2, 6, 25, 1298, 11223, 1584404

History

• 2024-02-03: Found n = 1584404, Ryan Propper, Serge Batalov
• 2021-10-23: Checked n = 1 - 510, Karsten Bonath
• 2014-04-29: Checked n = 111000 - 222000, Steven Harvey
• 2014-03-13: Checked to n = 25000, Steven Harvey, double-check
• 2012-12-04: Checked to n = 25000, Thomas Ritschel
• 2012-11-15: Reserved by Steven Harvey to n = 222222
• 2010-11-01: Checked n = 511 - 4000, Steven Harvey, double-check
• 2009-06-23: Checked n = 55555 - 111000, Steven Harvey
• 2005-01-25: Checked n = 6000 - 10000, Mark Rodenkirch
• 2005-01-03: Checked n = 5000 - 6000, Mark Rodenkirch
• 2004-12-21: Reserved by Mark Rodenkirch to n = 10000
• 2004-12-21: Checked n = 4096 - 5000, Mark Rodenkirch
• 2004-12-15: Reserved by Mark Rodenkirch to n = 6000
• 2004-12-03: Reserved by Mark Rodenkirch to n = 5000
• 2004-08-16: Checked to n = 55555, Steven Harvey
• 2002-12: Checked n = 511 - 4096, Mark Rodenkirch
• 2001-09-24: Found n = 11223, Steven Harvey
• ?: Found n = 1298, (Walker)