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
2627167
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
22330919511031.1old
100042519371133.22008-07-14 20:29:14
23743757369271341.12008-07-14 20:29:14
ECM
DigitsB1Curves
2550000230 / 280
Estimated T-Level: 24.1
TF below 2^75 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-17Oliver Kruse4F70338126A59368385992253
Verified
PRP without proof (not generated)
2017-12-02storm55104F70338126A59368398807653
History
DateUserTypeResult
2019-07-04alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-12-02storm5510C-PRPM2627167/2233091951/10004251937/2374375736927 : 4F70338126A59368
2017-10-17Oliver KruseC-PRPM2627167/2233091951/10004251937/2374375736927 : 4F70338126A59368
2008-07-14George WoltmanF-ECMFactor: 2374375736927
2008-07-14George WoltmanF-ECMFactor: 10004251937