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 919•2ⁿ-1

From Prime-Wiki

Revision as of 03:32, 28 March 2023 by Gd barnes (talk | contribs) (n=2097543 & add history)

(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` :	919 , 2
Count :	28
Nash :	1517
Max `n` :	2,200,000
Date :	2024-07-30
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

3, 19, 55, 115, 145, 237, 435, 619, 663, 1399, 1807, 2235, 2707, 4459, 35673, 54249, 76945, 84393, 109047, 110773, 117535, 260767, 358345, 402729, 996819, 1335567, 1699197, 2097543

History

2023-03-27: Found n = 2097543, Gary Barnes
2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
2022-03-18: Found n = 1699197, Gary Barnes
2014-08-26: Found n = 1335567, Gary Barnes
2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
2011-07-11: Checked to n = 1000000, NPLB Drive 7, released
2011-07-09: Found n = 996819, Gary Barnes
2008-12-22: Checked to n = 600000, NPLB Drive 1, released
2008-12-19: Reserved by NPLB Drive 7, for 600000<n<=1000000
2008-03-25: Checked to n = 333200, NPLB Drive 2, released
2008-03-09: Found n = 402729, James P. Burt
2008-02-19: Found n = 358345, James P. Burt
2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
2003-05-16: Found n = 117535, Steven Harvey
2003-05-15: Found n = 110773, Steven Harvey
2003-01-06: Found n = 109047, Steven Harvey
2001-06-26: Found n = 84393, Kimmo Herranen
2001-06-26: Found n = 76945, Kimmo Herranen

Retrieved from "https://www.rieselprime.de/z/index.php?title=Riesel_prime_2_919&oldid=27360"