Information as of 2020-04-07: Inserting more history entries for Riesel primes k<300 (k=1-49 done)

RPS 2nd Megabit Drive

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  • 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
  • k-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
  • n-values:
n > 1000000

Data table

Found primes

115 [2]: 1141719, 1524183
117 [5]: 1104138, 1210282, 1302764, 1554601, 1618434
123 [3]: 1225115, 1241690, 1779728
129 [1]: 1376223
135 [1]: 1288177
143 [1]: 2007888
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
171 [2]: 1362662, 1575999
173 [2]: 1098914, 1504740
175 [4]: 1065181, 1162313, 1571521, 1711779
179 [2]: 1464720, 1636808
183 [4]: 1095896, 1219415, 1618775, 1707182
185 [1]: 1234730
189 [1]: 1547744
193 [1]: 1268399

Range history