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
2477641
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
14816293191030.5old
ECM
DigitsB1Curves
2550000147 / 280
Estimated T-Level: 22.6
TF below 2^70 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-14Oliver KruseE4F43F2FC7EF33F71142451453
Verified
PRP without proof (not generated)
2017-11-29storm5510E4F43F2FC7EF33F71214671053
History
DateUserTypeResult
2019-07-04alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-29storm5510C-PRPM2477641/1481629319 : E4F43F2FC7EF33F7
2017-10-14Oliver KruseC-PRPM2477641/1481629319 : E4F43F2FC7EF33F7