Riesel primes of the form 18455•2n-1

Current data

k , b : 18455 , 2 Count : 62 Nash : 3053 Max n : 1,500,000 Date : 2025-02-10

2, 8, 10, 12, 14, 16, 18, 34, 38, 42, 60, 78, 96, 102, 122, 170, 198, 214, 224, 276, 300, 500, 546, 592, 594, 612, 642, 970, 1028, 1488, 1682, 1774, 2198, 2336, 2618, 2744, 3128, 3546, 5886, 7826, 8440, 12052, 12718, 14448, 22188, 34152, 55706, 97750, 99674, 109586, 115252, 120362, 147454, 167288, 254048, 491282, 551540, 770924, 1036400, 1221368, 1302210, 1476402

History

• 2025-02-10: Checked n = 500000 - 1500000, Gary Barnes, released
• 2025-02-03: Reserved by Gary Barnes for n = 500000 - 1500000
• 2024-08-10: Sieve file created: n = 500000 - 1500000, Alexander Jones
• 2024-08-10: Checked n = 150000 - 500000, Alexander Jones, released
• 2024-07-30: Reserved by Alexander Jones for n = 150000 - 500000
• 2021-12-29: Checked n = 100000 - 150000, Alexander Jones
• 2021-11-16: Checked n = 50000 - 100000, Alexander Jones
• 2021-08-16: Checked n = 1 - 50000, Alexander Jones
• 2016-12-18: Found n = 1476402, Thomas Ritschel, The Other Prime Search
• 2011-11-23: Checked n = 1 - 1007, Gary Barnes