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*Purpose: The goal of this drive is to search for primes of the form {{Kbn|k|n}} for k=<300 and n>1000000.
 
*Purpose: The goal of this drive is to search for primes of the form {{Kbn|k|n}} for k=<300 and n>1000000.
 
*Link: [https://www.mersenneforum.org/showthread.php?t=15557 Mersenne Forum]
 
*Link: [https://www.mersenneforum.org/showthread.php?t=15557 Mersenne Forum]
*Started:2011-04-28
+
*Started: 2011-04-28
*Ended
+
*Ended: ongoing
*k-values:
+
*{{Vk}}-values:
:115, 117, 123, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 153, 155, 157, 159, 161, 171, 173, 175, 177, 179, 181, 183, 185, 187, 189, 193
+
:'''2011-04-28''': {{Vk}} = 115, 117, 123, 129, 135, 147, 149, 153, 155, 157, 159, 171, 173, 175, 179, 183, 185, 189, 193 for {{Num|1000000}} &le; {{Vn}} &le; {{Num|1100000}}
*n-values:  
+
:'''2011-06-03''': extending all {{Vk}} for {{Vn}} > {{Num|1100000}}
:n > 1000000
+
:'''2015-06-19''': adding {{Vk}} = 131, 133, 137, 139, 141, 143, 145, 161, 177, 181, 187 for {{Vn}} > {{Num|2000000}}
 +
:'''2020-03-20''': removing {{Vk}} = 193 for {{Vn}} > {{Num|2200000}}
 +
:'''currently''' {{Vk}} = 115, 117, 123, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 153, 155, 157, 159, 161, 171, 173, 175, 177, 179, 181, 183, 185, 187, 189
 +
*{{Vn}}-values:
 +
:{{Vn}} > 1000000
 +
 
 +
==Multi Reservation==
 +
*[[:Multi Reservation:5|Here]]: The current {{Vn}}<sub>max</sub> = {{Num|{{Multi Reservation:5-NMax}}}} as of {{Multi Reservation:5-Date}}.
  
 
==Data table==
 
==Data table==
  
 
==Found primes==
 
==Found primes==
:115 [2]: 1141719, 1524183
+
:[[Riesel prime 2 115|115]] [2]: 1141719, 1524183
:117 [5]: 1104138, 1210282, 1302764, 1554601, 1618434
+
:[[Riesel prime 2 117|117]] [6]: 1104138, 1210282, 1302764, 1554601, 1618434, 2117600
:123 [3]: 1225115, 1241690, 1779728
+
:[[Riesel prime 2 123|123]] [3]: 1225115, 1241690, 1779728
:129 [1]: 1376223
+
:[[Riesel prime 2 129|129]] [1]: 1376223
:135 [1]: 1288177
+
:[[Riesel prime 2 131|131]] [0]: -
:143 [1]: 2007888
+
:[[Riesel prime 2 133|133]] [0]: -
:147 [3]: 1273684, 1374216, 1499333
+
:[[Riesel prime 2 135|135]] [2]: 1288177, 2180256
:149 [4]: 1054092, 1138804, 1541152, 1945668
+
:[[Riesel prime 2 137|137]] [1]: 2244398
:153 [2]: 1215327, 1245154
+
:[[Riesel prime 2 139|139]] [0]: -
:155 [1]: 1207424
+
:[[Riesel prime 2 141|141]] [0]: -
:157 [1]: 1085121
+
:[[Riesel prime 2 143|143]] [1]: 2007888
:159 [3]: 1004981, 1240229, 2081069
+
:[[Riesel prime 2 145|145]] [0]: -
:171 [2]: 1362662, 1575999
+
:[[Riesel prime 2 147|147]] [3]: 1273684, 1374216, 1499333
:173 [2]: 1098914, 1504740
+
:[[Riesel prime 2 149|149]] [4]: 1054092, 1138804, 1541152, 1945668
:175 [4]: 1065181, 1162313, 1571521, 1711779
+
:[[Riesel prime 2 153|153]] [2]: 1215327, 1245154
:179 [2]: 1464720, 1636808
+
:[[Riesel prime 2 155|155]] [1]: 1207424
:183 [4]: 1095896, 1219415, 1618775, 1707182
+
:[[Riesel prime 2 157|157]] [1]: 1085121
:185 [1]: 1234730
+
:[[Riesel prime 2 159|159]] [3]: 1004981, 1240229, 2081069
:189 [1]: 1547744
+
:[[Riesel prime 2 161|161]] [0]: -
:193 [1]: 1268399
+
:[[Riesel prime 2 171|171]] [2]: 1362662, 1575999
 +
:[[Riesel prime 2 173|173]] [2]: 1098914, 1504740
 +
:[[Riesel prime 2 175|175]] [4]: 1065181, 1162313, 1571521, 1711779
 +
:[[Riesel prime 2 177|177]] [0]: -
 +
:[[Riesel prime 2 179|179]] [2]: 1464720, 1636808
 +
:[[Riesel prime 2 181|181]] [0]: -
 +
:[[Riesel prime 2 183|183]] [4]: 1095896, 1219415, 1618775, 1707182
 +
:[[Riesel prime 2 185|185]] [3]: 1234730, 2127966, 2264906
 +
:[[Riesel prime 2 187|187]] [1]: 2172693
 +
:[[Riesel prime 2 189|189]] [1]: 1547744
 +
:[[Riesel prime 2 193|193]] [1]: 1268399
  
 
==Range history==
 
==Range history==
 
+
{{Navbox Riesel Prime Search}}
 
[[Category:RPS 2nd Megabit Drive| ]]
 
[[Category:RPS 2nd Megabit Drive| ]]

Latest revision as of 19:21, 13 April 2024

Logo.svg This article is only a stub. You can help PrimeWiki by expanding it.
  • Name: Riesel Prime Search 2nd Megabit Drive
  • Purpose: The goal of this drive is to search for primes of the form k•2n-1 for k=<300 and n>1000000.
  • Link: Mersenne Forum
  • Started: 2011-04-28
  • Ended: ongoing
  • k-values:
2011-04-28: k = 115, 117, 123, 129, 135, 147, 149, 153, 155, 157, 159, 171, 173, 175, 179, 183, 185, 189, 193 for 1,000,000 ≤ n ≤ 1,100,000
2011-06-03: extending all k for n > 1,100,000
2015-06-19: adding k = 131, 133, 137, 139, 141, 143, 145, 161, 177, 181, 187 for n > 2,000,000
2020-03-20: removing k = 193 for n > 2,200,000
currently k = 115, 117, 123, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 153, 155, 157, 159, 161, 171, 173, 175, 177, 179, 181, 183, 185, 187, 189
  • n-values:
n > 1000000

Multi Reservation

  • Here: The current nmax = 2,300,000 as of 2022-04-20.

Data table

Found primes

115 [2]: 1141719, 1524183
117 [6]: 1104138, 1210282, 1302764, 1554601, 1618434, 2117600
123 [3]: 1225115, 1241690, 1779728
129 [1]: 1376223
131 [0]: -
133 [0]: -
135 [2]: 1288177, 2180256
137 [1]: 2244398
139 [0]: -
141 [0]: -
143 [1]: 2007888
145 [0]: -
147 [3]: 1273684, 1374216, 1499333
149 [4]: 1054092, 1138804, 1541152, 1945668
153 [2]: 1215327, 1245154
155 [1]: 1207424
157 [1]: 1085121
159 [3]: 1004981, 1240229, 2081069
161 [0]: -
171 [2]: 1362662, 1575999
173 [2]: 1098914, 1504740
175 [4]: 1065181, 1162313, 1571521, 1711779
177 [0]: -
179 [2]: 1464720, 1636808
181 [0]: -
183 [4]: 1095896, 1219415, 1618775, 1707182
185 [3]: 1234730, 2127966, 2264906
187 [1]: 2172693
189 [1]: 1547744
193 [1]: 1268399

Range history

Riesel Prime Search