Riesel prime 1024 74

Current data

k , b : 74 , 1024 Count : 1 Nash : 649 Max n : 670,000 Date : 2014-07-30

666084

Remarks :

As part of Conjectures 'R Us, 74*1024^n-1 is independently searched only for n-values == 1 mod 10 of Riesel 37•2n-1. Testing was done by Riesel Prime Search to n=235000 and by Conjectures 'R Us for 235000<n≤670000.

History

• 2014-07-30: Checked to n = 670000, Serge Batalov released
• 2014-07-30: Found n = 666084, Serge Batalov
• 2014-07-27: Reserved by Serge Batalov for n=600000-638000
• 2014-03-12: Checked to n = 600000, Dmitry Domanov
• 2014-02-05: Reserved by Dmitry Domanov to n=600000
• 2013-10-21: Checked to n = 400000, Mark Rodenkirch
• 2013-09-18: Reserved by Mark Rodenkirch to n=400000
• 2013-07-09: Checked to n = 235000, Predrag Minovic
• 2012-07-02: Checked to n = 229000, Predrag Minovic
• 2012-05-04: Checked to n = 215000, Predrag Minovic
• 2011-06-04: Checked to n = 200000, Predrag Minovic
• 2011-04-12: Checked to n = 195000, Predrag Minovic
• 2011-03-05: Checked to n = 187000, Predrag Minovic
• 2011-01-13: Checked to n = 176000, Predrag Minovic
• 2010-10-31: Checked to n = 171000, Predrag Minovic
• 2010-09-05: Checked to n = 151000, Predrag Minovic
• 2010-07-18: Reserved by Predrag Minovic for n=145000-150000
• 2008-12-15: Checked to n = 101100, Alexander Jones
• 2008-11-21: Reserved by Alexander Jones
• 2008-07-07: Checked to n = 100000, Gary Barnes, released
• 2008-05-25: Checked to n = 96500, Gary Barnes
• 2008-02-01: Checked to n = 70500, Gary Barnes
• 2008-01-10: Checked to n = 60000, Gary Barnes
• 2007-04-07: Checked to n = 55000, Jeffrey Sax
• 2004-07-26: Checked to n = 21000, Steven Harvey, released
• 2004-04-15: Checked to n = 20000, Thomas Masser