Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
62891251TF
No factors below 274
TF target 274
P-1
B1 = 560000
B2 = 11200000
LL
StatusDateUserResidueShift
Bad2014-04-24Helmut Kirrmaier00000000000000000
Verified2014-11-26MadPoo8F12D5DB3E8A07222110941
Verified2016-02-06Mark Rose8F12D5DB3E8A072231906638
History
DateUserTypeResult
2016-02-23Mark RoseNF
no factor from 2^59 to 2^63
2016-02-06Mark RoseC-LL
8F12D5DB3E8A0722
2014-11-26MadPooC-LL
8F12D5DB3E8A0722
2014-04-24Helmut KirrmaierC-LL
0000000000000000
2013-08-25owftheevilNF-PM1
B1=560000, B2=11200000, E=12
2013-08-16TheJudgerNF
no factor from 2^73 to 2^74
2013-04-02bcp19NF
no factor from 2^72 to 2^73
2013-04-02bcp19NF
no factor from 2^71 to 2^72
2012-09-07Bold_SeekerNF
no factor from 2^70 to 2^71
2011-12-13GnorfeNF
no factor from 2^69 to 2^70
2010-01-02UngelovendeNF
no factor from 2^68 to 2^69
2009-12-30UngelovendeNF
no factor from 2^67 to 2^68
2009-12-27UngelovendeNF
no factor from 2^66 to 2^67
2009-12-24UngelovendeNF
no factor from 2^65 to 2^66
2009-08-17kvizbarNF
no factor from 2^64 to 2^65
2009-02-03Wojciech FlorekNF
no factor from 2^63 to 2^64