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:





MnDetails
5467907
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 272
TF target 266
Factored
FactorDigitsBitsDate
536141597515125141956092375.52025-03-20 01:46:26
ECM
DigitsB1Curves
255000018 / 280
Estimated T-Level: 20.3
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factored1999-05-16John BaschabB5BEEA045E8F5ACB0Windows,Prime95,v16,(aka WS1)
Factored2004-07-02Jose Manuel GarciaB5BEEA045E8F5ACB2045457Windows,Prime95,v20,NT service,(aka WW5)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-03-25Sly_007C9DBD51A6037A3071536058053
History
DateUserTypeResult
2025-03-25almitydaveCERT
Proof certified good
2025-03-25Sly_007C-PRPM5467907/53614159751512514195609 : C9DBD51A6037A307
Proof Certified Good

Proof Power: 7

2025-03-20fordobrF-ECMFactor: 53614159751512514195609 / ECM curve 5, B1=50000, B2=64857975, Edwards Sigma=1828136775659485
2021-10-28axnNF-PM1B1=8000000, B2=400000000
2021-09-18SRBaseNFno factor TF: 71-72
2021-08-23SRBaseNFno factor TF: 70-71
2021-08-18SRBaseNFno factor TF: 69-70
2020-09-07TJAOINFno factor TF: 68-69
2019-09-13USAFSSNF-PM1B1=330000, B2=9817500
2018-06-29ramgeisNFno factor TF: 67-68
2016-07-02Gordon SpenceNFno factor TF: 66-67
2015-08-24snme2pm1NFno factor TF: 65-66
2014-12-30monstNFno factor TF: 64-65
2014-12-30snme2pm1NFno factor TF: 63-64
2010-05-18Squeeky_SquirrelNF-PM1B1=60000, B2=1035000, E=6
2009-05-05GrunwalderGIMPNFno factor TF: 62-63
2004-07-02JMGarciaNF-PM1B1=20000, B2=150000
2004-07-02JMGarciaC-LLB5BEEA045E8F5ACB
2000-08-17JMGarciaC-LLB5BEEA045E8F5ACB
2000-07-03JMGarciaNF-PM1B1=20000, B2=150000
1999-05-16-anonymous-C-LLB5BEEA045E8F5ACB
1998-10-18-anonymous-C-LLB5BEEA045E8F5ACB
1998-05-16slaurNFno factor TF: 1-62
1998-03-31-anonymous-NFno factor TF: 1-61