NPLB K300 Drive 2

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Overview

NPLB K300 Drive 2 - Ongoing

Project	No Prime Left Behind
Drive name	NPLB K300 Drive 2
Purpose	Search for Riesel primes for many k's < 100 and n = 3000000 - 4000000
Current status	Multi Reservation 4: The current nmax = 3,100,000 as of 2025-03-12
Date start	2025-02-27
k-values	21 - 95
n-range	3000000 - 4000000
Link	Thread at MersenneForum

k-history

2025-02-27: k = 73, 75, 77, 85, 91, 93, 95

2025-03-12: added k = 35, 37, 47, 53, 57, 61, 65, 87 at n = 3100000

(later): add k = 81 at n = 3200000

currently k = 35, 37, 47, 53, 57, 61, 65, 73, 75, 77, 85, 87, 91, 93, 95

Primes table

The data file can be found here.

k-value	Nash	Candidates	n-range	# primes	prime(s) for n (C=confirmed)
35	1264		3100000-	0
37	630		3100000-	0
47	922		3100000-	0
53	1368		3100000-	0
57	2672		3100000-	0
61	2170		3100000-	0
65	2034		3100000-	0
73	800		3000000-	0
75	3181		3000000-	0
77	1700		3000000-	0
81	1698		3200000-	0
85	921		3000000-	0
87	2839		3100000-	0
91	2374		3000000-	0
93	2149		3000000-	0
95	1490		3000000-	0

Notes

No Prime Left Behind

Miscellaneous

Main

Current work

Drive 17 Drive 18 Drive 19 K300 Drive 2 K300 Drive 3

Completed

Drive 1 Drive 2 Drive 3 Drive 4 Drive 5 Drive 6 Drive 7 Drive 8 Drive 9A Drive 9B Drive 9C Drive 9D Drive 10 Drive 11 Drive 12A Drive 12B Drive 12C Drive 13 Drive 14 Drive 15 Drive 16 K300 Drive 1 Mini Drive 1 Mini Drive 2 Mini Drive 3 Mini Drive 4 Mini Drive 5 Maxi Drive 1 Drive High-n

Races

Race 1 Race 2 Race 3 ...

Others