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
5106397
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 270
TF target 265
Factored
FactorDigitsBitsDate
3099276595191238.2old
1586130550982871547.22008-09-30 21:43:56
831891949728245531756.22015-03-17 12:26:20
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC9212CCCB42304093013
Verified
PRP without proof (not generated)
2018-05-07storm5510C9212CCCB42304093128143513
History
DateUserTypeResult
2025-02-25Sid & AndyNF-PM1B1=3600000, B2=8929750830
2025-01-28Sid & AndyNFno factor TF: 68-70
2023-05-11This -Anonymous-NF-PM1B1=50000, B2=1000000
2018-05-07storm5510C-PRPM5106397/309927659519/158613055098287/83189194972824553 : C9212CCCB4230409
2017-09-20kkmrkkblmbrbkC-PRPM5106397/158613055098287/309927659519/83189194972824553 : C9212CCCB4230409
2015-03-17TJAOIFFactor: 83189194972824553
2008-09-30markrFFactor: 158613055098287