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
5036671
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 270
TF target 265
Factored
FactorDigitsBitsDate
443227049928.7old
91566678791033.12008-09-08 00:22:38
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)
2017-11-22storm55103ACECF6915E437852301882153
Verified
PRP without proof (not generated)
2018-01-17kkmrkkblmbrbk3ACECF6915E437852134696353
History
DateUserTypeResult
2025-02-10Sid & AndyNF-PM1B1=5200000, B2=7587067950
2025-01-07Sid & AndyNFno factor TF: 68-70
2024-05-11cramsey87NF-PM1B1=500000, B2=311654070
2023-05-11This -Anonymous-NF-PM1B1=50000, B2=1000000
2018-01-17kkmrkkblmbrbkC-PRPM5036671/443227049/9156667879 : 3ACECF6915E43785
2017-11-22storm5510C-PRPM5036671/443227049/9156667879 : 3ACECF6915E43785
2008-09-08Will EdgingtonFFactor: 9156667879