Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
2613997
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
250943713927.9old
1922743580186424561532167.42022-06-22 09:21:20
ECM
DigitsB1Curves
2550000138 / 280
Estimated T-Level: 22.5
TF below 2^70 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2017-10-17Oliver Kruse5855E0F5D60D6A40162974653
Factored
PRP without proof (not generated)
2017-12-02storm55105855E0F5D60D6A401244554053
Verified
Certified Good
2022-06-28Klaus Nordmann5855E0F5D60D6A402177270553
Verified
Certified Good
2022-07-25some-students5855E0F5D60D6A402214040953
History
DateUserTypeResult
2022-07-25tuxrunnerCERT
Proof certified good
2022-07-25some-studentsC-PRPM2613997/250943713/192274358018642456153 : 5855E0F5D60D6A40
Proof Certified Good

Proof Power: 7

2022-06-29ANONYMOUSCERT
Proof certified good
2022-06-28Klaus NordmannC-PRPM2613997/250943713/192274358018642456153 : 5855E0F5D60D6A40
Proof Certified Good

Proof Power: 7

2022-06-22TJAOIFFactor: 192274358018642456153
2019-07-04alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-12-02storm5510C-PRPM2613997/250943713 : 5855E0F5D60D6A40
2017-10-17Oliver KruseC-PRPM2613997/250943713 : 5855E0F5D60D6A40