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
5019569
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 270
TF target 265
Factored
FactorDigitsBitsDate
40156553825.3old
2151758606256695771857.62015-07-01 11:07:47
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)
2017-11-21storm5510ED4118D313600F7E2155422853
Verified
PRP without proof (not generated)
2018-01-13kkmrkkblmbrbkED4118D313600F7E2414917553
History
DateUserTypeResult
2025-01-21Sid & AndyNF-PM1B1=5600000, B2=7759443510
2025-01-02Sid & AndyNFno factor TF: 68-70
2024-05-08cramsey87NF-PM1B1=500000, B2=324995580
2023-05-11This -Anonymous-NF-PM1B1=50000, B2=1000000
2018-01-13kkmrkkblmbrbkC-PRPM5019569/40156553/215175860625669577 : ED4118D313600F7E
2017-11-21storm5510C-PRPM5019569/40156553/215175860625669577 : ED4118D313600F7E
2015-07-01TJAOIFFactor: 215175860625669577