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The data file can be found <b>[[:File:RPS_Megabit_Drive_1.csv|here]]</b>.
 
The data file can be found <b>[[:File:RPS_Megabit_Drive_1.csv|here]]</b>.
  
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Note: To identify a post of the MersennForum thread the date and post  number are given.
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*To identify a post of the MersennForum thread the date and post  number are given.
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*If a post number is given with '1' there's no information from the thread, so the first post is used instead.
 
{{#get_web_data:url=https://www.rieselprime.de/z/images/a/a5/RPS_Megabit_Drive_1.csv|format=csv with header|delimiter=;|data=range=range,cand=cand,contr=contr,dat1=dat1,post1=post1,id1=id1,dat2=dat2,post2=post2,id2=id2}}
 
{{#get_web_data:url=https://www.rieselprime.de/z/images/a/a5/RPS_Megabit_Drive_1.csv|format=csv with header|delimiter=;|data=range=range,cand=cand,contr=contr,dat1=dat1,post1=post1,id1=id1,dat2=dat2,post2=post2,id2=id2}}
 
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{| class="wikitable sortable" style="height: auto"
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! data-sort-type="text" class="fixhead" | Range (''kByte'')
 
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{{!}} style="text-align:center" {{!}} {{{range}}}
 
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{{!}} style="text-align:left" {{!}} {{Contribs|{{{contr}}}}}
 
{{!}} style="text-align:center" {{!}} {{HistLink|{{{dat1}}}|0{{{id1}}}}} ({{{post1}}})
 
{{!}} style="text-align:center" {{!}} {{HistLink|{{{dat1}}}|0{{{id1}}}}} ({{{post1}}})
 
{{!}} style="text-align:center" {{!}} {{HistLink|{{{dat2}}}|0{{{id2}}}}} ({{{post2}}})
 
{{!}} style="text-align:center" {{!}} {{HistLink|{{{dat2}}}|0{{{id2}}}}} ({{{post2}}})

Revision as of 10:45, 9 May 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

  • 2010-10-24

Ended

  • ongoing

k-values

2010-10-24: k = 51, 57, 61, 65, 69, 87 for n > 1,000,000
2011-01-26: adding k = 47, 53 for n > 1,000,000
2014-08-12: removing k = 51, 69 for n > 2,500,000
2014-08-12: adding k = 35 for n > 2,520,000, k = 37 for n > 2,500,000 only n != 1 mod 10, k = 103 for n ≥ 2,550,223, and k = 111 for n ≥ 2,601,487
currently k = 35, 37, 47, 53, 57, 61, 65, 87, 103, 111

Sieve file

Sieve file for 3,000,000 < n < 4,000,000 available here (LLR-format, 290,225 candidates).

Multi Reservation

  • Here: The current nmax = 3,100,000 as of 2020-11-12.

Data table

Number of candidates for n ≤ 3100000.

k-value Nash Candidates n-range prime(s) for n
35 1264 12517 2520000 -
37 x 630 5303 2500000 -
47 922 33673 1000000 - 1025950
51 1550 40591 1000000 - 2500000 1026910, 1027635, 1231665
53 1368 46485 1000000 - 1632590
57 2672 94011 1000000 - 1098272, 1110980, 1486214, 2103370, 2639528, 3093440
61 2170 79949 1000000 - 1124049, 1416365, 1487125, 1734983, 2134577, 2381887, 2580689, 2936967
65 2034 71164 1000000 - 1374574, 1421088, 1505640, 2450614, 2583720, 2876718, 3080952
69 3438 87057 1000000 - 2500000 1473217, 1566375, 2174213, 2410035, 2428251
87 2839 101880 1000000 - 1089098, 1120006, 1332741, 1358189, 1616138, 1852590, 2518122
103 1373 12918 2550223 -
111 2954 24336 2601487 - 3060238

x - Only n != 1 mod 10 is searched.

Range history

The data file can be found here.

Notes:

  • To identify a post of the MersennForum thread the date and post number are given.
  • If a post number is given with '1' there's no information from the thread, so the first post is used instead.
Range (kByte) #cand. Contributor Reserved Done

1000-1003 963 Predrag Minovic [Expression error: Unrecognized punctuation character "{". 2010-10-24] (2) [Expression error: Unrecognized punctuation character "{". 2010-11-07] (22)

External Links

Riesel Prime Search
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