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{{Stub}}
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__NOTOC__{{Stub}}
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*Name: [[Riesel Prime Search]] 2nd Megabit Drive
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==Purpose==
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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.
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The goal of this drive is to search for primes of the form {{Kbn|k|n}} for {{Vk}} &le; 300 and {{Vn}} > 1000000.
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*Link: [https://www.mersenneforum.org/showthread.php?t=15557 Mersenne Forum]
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*Started:2011-04-28
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==Started==
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*Ended
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*2011-04-28
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*k-values:
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: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
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==Ended==
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*n-values:
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*2022-04-10
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:n > 1000000
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=={{Vk}}-values==
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:'''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}}
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:'''2011-06-03''': extending all {{Vk}} for {{Vn}} > {{Num|1100000}}
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:'''2015-06-19''': adding {{Vk}} = 131, 133, 137, 139, 141, 143, 145, 161, 177, 181, 187 for {{Vn}} > {{Num|2000000}}
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:'''2020-03-20''': removing {{Vk}} = 193 for {{Vn}} > {{Num|2200000}}
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:'''All for drive''': {{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, 193
  
 
==Data table==
 
==Data table==
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The data file can be found [[:File:RPS Megabit Drive 2 k-values.csv|here]].
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{{#get_web_data:url=https://www.rieselprime.de/z/images/5/5d/RPS_Megabit_Drive_2_k-values.csv|format=csv with header|delimiter=;|data=k=k,nash=nash,cand=cand,range=range,count=count,n=n}}
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<div style="width:55em; height:650px; overflow:auto;">
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{| class="wikitable sortable" style="height: auto"
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! data-sort-type="number" class="fixhead" | {{Vk}}-value
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! data-sort-type="number" class="fixhead" | [[Nash weight|Nash]]
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! data-sort-type="number" class="fixhead" | Candidates
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! data-sort-type="text" class="fixhead" | {{Vn}}-range
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! data-sort-type="number" class="fixhead" | # primes
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! data-sort-type="text" class="fixhead" | prime(s) for {{Vn}}
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{{#for_external_table:<nowiki/>
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{{!}}-
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{{!}} style="text-align:right" {{!}} [[Riesel prime 2 {{{k}}}|{{{k}}}]]
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{{!}} style="text-align:right" {{!}} {{{nash}}}
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{{!}} style="text-align:right" {{!}} {{{cand}}}
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{{!}} style="text-align:right" {{!}} {{{range}}}
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{{!}} style="text-align:right" {{!}} {{{count}}}
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{{!}} style="text-align:left" {{!}} {{{n}}}
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}}
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|}</div>
  
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==Found primes==
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==Range history==
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:115 [2]: 1141719, 1524183
 
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:117 [5]: 1104138, 1210282, 1302764, 1554601, 1618434
 
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:123 [3]: 1225115, 1241690, 1779728
 
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:129 [1]: 1376223
 
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:135 [1]: 1288177
 
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:143 [1]: 2007888
 
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:147 [3]: 1273684, 1374216, 1499333
 
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:149 [4]: 1054092, 1138804, 1541152, 1945668
 
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:153 [2]: 1215327, 1245154
 
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:155 [1]: 1207424
 
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:157 [1]: 1085121
 
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:159 [3]: 1004981, 1240229, 2081069
 
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:171 [2]: 1362662, 1575999
 
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:173 [2]: 1098914, 1504740
 
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:175 [4]: 1065181, 1162313, 1571521, 1711779
 
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:179 [2]: 1464720, 1636808
 
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:183 [4]: 1095896, 1219415, 1618775, 1707182
 
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:185 [1]: 1234730
 
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:189 [1]: 1547744
 
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:193 [1]: 1268399
 
  
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==Range history==
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==External Links==
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*[https://www.mersenneforum.org/showthread.php?t=15557 Thread] at [[MersenneForum]]
  
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[[Category:RPS 2nd Megabit Drive| ]]
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{{Navbox Riesel Prime Search}}
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[[Category:Riesel Prime Search|Megabit Drive 2]]

Latest revision as of 20:40, 20 July 2024

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Purpose

The goal of this drive is to search for primes of the form k•2n-1 for k ≤ 300 and n > 1000000.

Started

  • 2011-04-28

Ended

  • 2022-04-10

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
All for drive: 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, 193

Data 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

Range history

External Links

Riesel Prime Search
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