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 725•2ⁿ-1

From Prime-Wiki

Jump to: navigation, search

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

Current data

`k` , `b` :	725 , 2
Count :	25
Nash :	1505
Max `n` :	2,170,000
Date :	2024-04-02
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

6, 8, 20, 30, 32, 42, 48, 90, 1340, 1560, 5796, 9228, 10652, 11648, 12744, 14204, 18108, 18200, 85602, 97926, 142952, 152310, 184722, 414408, 1331970

History

2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
2014-08-15: Found n = 1331970, Gary Barnes
2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
2011-02-08: Checked to n = 1000000, NPLB Drive 6, released
2008-12-22: Checked to n = 600000, NPLB Drive 1, released
2008-12-19: Reserved by NPLB Drive 6, for 600000<n<=1000000
2008-04-09: Found n = 414408, Carlos Eduardo Pinho
2008-03-25: Checked to n = 333200, NPLB Drive 2, released
2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
2004-09-13: Found n = 184722, Steven Harvey
2001-09-10: Found n = 97926, Kimmo Herranen
2001-09-08: Found n = 85602, Kimmo Herranen

Retrieved from "https://www.rieselprime.de/z/index.php?title=Riesel_prime_2_725&oldid=27120"