Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnDetails
10392827
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
262083664232963111754.5old
1100405531595415511772166.62020-06-02 13:39:32
ECM
DigitsB1Curves
255000013 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
PRP without proof (not generated)
2020-05-29Klaus Nordmann79E3870E239C36181870374753
Verified
PRP without proof (not generated)
2020-06-03riccardo uberti79E3870E239C36182475566953
History
DateUserTypeResult
2026-01-19Sid & AndyNF-PM1B1=1700000, B2=1921227000
2020-06-03riccardo ubertiC-PRPM10392827/26208366423296311/110040553159541551177 : 79E3870E239C3618
2020-06-02TJAOIFFactor: 110040553159541551177
2020-05-29Klaus NordmannC-PRPM10392827/26208366423296311 : 79E3870E239C3618