Riesel primes of the form 103881•2n-1

Current data

k , b : 103881 , 2 Type : 3 Count : 39 Nash : 1895 Max n : 500,000 Date : 2015-02-01

2, 10, 13, 14, 22, 31, 83, 298, 343, 470, 541, 595, 661, 955, 1238, 2470, 2503, 3254, 3566, 3631, 5275, 9623, 10919, 11999, 14818, 16081, 18623, 25654, 37765, 76018, 170341, 186673, 373363, 393685, 407903, 414442, 447943, 465242, 489661

History

• 2015-02-01: Checked n = 300000 - 500000, Alexander Jones
• 2014-01-28: Checked n = 275000 - 300000, Alexander Jones
• 2013-12-28: Checked n = 250000 - 275000, Alexander Jones
• 2013-12-09: Checked n = 225000 - 250000, Alexander Jones
• 2013-11-19: Checked n = 200000 - 225000, Alexander Jones
• 2013-11-04: Checked n = 150000 - 200000, Alexander Jones
• 2013-10-16: Checked n = 1 - 150000, Alexander Jones
• 2011-09-20: Found n = 489661, Lennart Vogel, Twin Prime Search 480000