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
3861817
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 264
Factored
FactorDigitsBitsDate
30016744995911341.4old
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)
2017-09-20kkmrkkblmbrbkF8D3CA892728A5191013
Verified
PRP without proof (not generated)
2017-12-21storm5510F8D3CA892728A5191135393313
History
DateUserTypeResult
2022-05-30JossNF-PM1B1=200000, B2=130364850
2022-04-17JossNF-PM1B1=200000
2017-12-21storm5510C-PRPM3861817/3001674499591 : F8D3CA892728A519
2017-09-20kkmrkkblmbrbkC-PRPM3861817/3001674499591 : F8D3CA892728A519