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Riesel primes of the form 219•2ⁿ-1

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Reserved! This sequence is currently part of Multi Reservation 6: CRUS Liskovets-Gallot.

Current data

`k` , `b` :	219 , 2
Type :	3
Count :	18
Nash :	1069
Max `n` :	5,000,000
Date :	2022-03-04
Reserved :	Conjectures 'R UsConjectures 'R Us/Reserved

7, 81, 381, 412, 657^[1], 853, 1317, 3261, 3768, 6081, 14017, 19993, 25863, 31801, 40113, 48877, 558313, 2178673

Notes

↑ Woodall 219•8²¹⁹-1

History

2021-04-23: Found n = 2178673, Gary Barnes, RPS 3rd Megabit Drive
2014-05-30: Reserved by RPS 3rd Megabit Drive for n > 1400000
2012-12-27: Checked to n = 1400000, Predrag Minovic, released
2012-09-15: Checked to n = 1200000, Predrag Minovic
2012-08-20: Checked to n = 1080000, Predrag Minovic
2005-04-26: Found n = 558313, Thomas Masser
1998-11-08: Found n = 48877, Kimmo Herranen
1998-11-05: Found n = 40113, Kimmo Herranen
1998-11-04: Found n = 31801, Kimmo Herranen
1998-11-03: Found n = 25863, Kimmo Herranen

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