RPS Megabit Drive 2

Overview

RPS Megabit Drive 2 - This drive is done.

Project	Riesel Prime Search
Drive name	RPS Megabit Drive 2
Purpose	Search for Riesel primes for k = 100 - 200 from n = 1000000
Date start	2011-04-28
Date end	2022-04-10
k-values	115 - 193
n-range	1000000 - 2300000
# candidates	932339
Primes found	50 new
Link	MersenneForum

k-history

2011-04-28: k = 115, 117, 123, 129, 135, 147, 149, 153-159, 171-175, 179, 183, 185, 189, 193 for n = 1000000 - 1100000

2011-06-03: extending all k from n = 1100000

2015-06-19: adding k = 131, 133, 137-145, 161, 177, 181, 187 from n = 2000000

2020-03-20: removing k = 193 for n from n = 2200000

All for drive: k = 115, 117, 123, 129-149, 153-161, 171-189, 193

n-history

• n-values: n = 1000000 - 2300000

Primes table

The data file can be found here.

k-value	Nash	Candidates	n-range	# primes	prime(s) for n
115	1954	43318	1000000-2300000	2	1141719, 1524183
117	3581	77288	1000000-2300000	6	1104138, 1210282, 1302764, 1554601, 1618434, 2117600
123	2133	45841	1000000-2300000	3	1225115, 1241690, 1779728
129	2753	59465	1000000-2300000	1	1376223
131	1065	5491	2000000-2300000	0
133	1442	7097	2000000-2300000	0
135	2322	51611	1000000-2300000	2	1288177, 2180256
137	1109	5321	2000000-2300000	1	2244398
139	2586	12577	2000000-2300000	0
141	1901	9565	2000000-2300000	0
143	2243	10886	2000000-2300000	1	2007888
145	1098	5497	2000000-2300000	0
147	2806	59973	1000000-2300000	3	1273684, 1374216, 1499333
149	1022	21856	1000000-2300000	4	1054092, 1138804, 1541152, 1945668
153	3189	68668	1000000-2300000	2	1215327, 1245154
155	1317	28793	1000000-2300000	1	1207424
157	917	19652	1000000-2300000	1	1085121
159	2237	47564	1000000-2300000	3	1004981, 1240229, 2081069
161	1273	6598	2000000-2300000	0
171	2674	57576	1000000-2300000	2	1362662, 1575999
173	1999	43684	1000000-2300000	2	1098914, 1504740
175	1792	38811	1000000-2300000	4	1065181, 1162313, 1571521, 1711779
177	1622	8047	2000000-2300000	0
179	779	16772	1000000-2300000	2	1464720, 1636808
181	2940	14832	2000000-2300000	0
183	1685	37510	1000000-2300000	4	1095896, 1219415, 1618775, 1707182
185	2161	46011	1000000-2300000	3	1234730, 2127966, 2264906
187	1158	5596	2000000-2300000	1	2172693
189	2793	60909	1000000-2300000	1	1547744
193	760	15530	1000000-2200000	1	1268399

Notes

Riesel Prime Search

Miscellaneous

Main

Current work

Completed

Drive 1 Drive 2 Drive 3 Drive 4 Drive 5 Drive 6 Drive 7 Drive 8 Drive 9 Drive 10 Drive 11 Drive 12 Drive 9ks Megabit Drive‎ 1 Megabit Drive‎ 2 Megabit Drive‎ 3

Individual k-searches

k=5 k=15 k=17 k=65 k=105 k=125 k=210885 k=2995125705

Others