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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MnDetails
5108027
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 270
TF target 265
Factored
FactorDigitsBitsDate
1291063423662980571856.8old
2814034481069077671858.02015-07-30 11:16:44
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)
2017-09-20kkmrkkblmbrbk7634B7090CC770022013
Verified
PRP without proof (not generated)
2018-05-11storm55107634B7090CC770022264238813
History
DateUserTypeResult
2025-02-28Sid & AndyNF-PM1B1=3600000, B2=9117768660
2025-01-28Sid & AndyNFno factor TF: 68-70
2024-07-30cramsey87NF-PM1B1=300000, B2=104169030
2023-05-11This -Anonymous-NF-PM1B1=50000, B2=1000000
2018-05-11storm5510C-PRPM5108027/129106342366298057/281403448106907767 : 7634B7090CC77002
2017-09-20kkmrkkblmbrbkC-PRPM5108027/129106342366298057/281403448106907767 : 7634B7090CC77002
2015-07-30TJAOIFFactor: 281403448106907767
1998-05-16-anonymous-FFactor: 129106342366298057