Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3).

Navigation

Topics

Help • Register • News • History • How to • Sequences statistics • Template prototypes

Riesel primes of the form 745•2ⁿ-1

From Prime-Wiki

Revision as of 23:01, 30 July 2023 by Gd barnes (talk | contribs) (n=2121591)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Jump to: navigation, search

Reserved! This sequence is currently part of Multi Reservation 3: NPLB Drive 18.

Current data

`k` , `b` :	745 , 2
Count :	25
Nash :	1600
Max `n` :	2,200,000
Date :	2024-07-30
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

1, 9, 19, 21, 73, 169, 359, 1001, 1351, 2413, 4959, 14159, 38779, 41793, 44483, 59711, 75771, 260463, 333239, 433969, 502499, 657911, 718939, 1494273, 2121591

History

2023-07-30: Found n = 2121591, Göran Schmidt
2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
2018-01-06: Found n = 1494273, Ian M. Gunn
2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
2009-10-16: Found n = 718939, Vaughan Davies
2009-05-08: Found n = 657911, Vaughan Davies
2008-12-22: Checked to n = 600000, NPLB Drive 1, released
2008-12-19: Reserved by NPLB Drive 6, for 600000<n<=1000000
2008-07-14: Found n = 502499, Gary Barnes
2008-05-15: Found n = 433969, Bruce E. Slade
2008-03-25: Checked to n = 333200, NPLB Drive 2, released
2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
2008-01-22: Found n = 333239, Gary Barnes
2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
2001-07-06: Found n = 75771, Kimmo Herranen

Retrieved from "https://www.rieselprime.de/z/index.php?title=Riesel_prime_2_745&oldid=29314"