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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MnStatusDetails
2470241Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1214048025358925291856.8old
ECM
DigitsB1Curves
2550000218 / 280
Estimated T-Level: 23.9
TF below 2^74 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-14Oliver Kruse3DCD92D2CBC503C61161068953
Verified2017-11-29storm55103DCD92D2CBC503C6191692453
History
DateUserTypeResult
2018-09-28alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-29storm5510C-PRP
M2470241/121404802535892529 : 3DCD92D2CBC503C6
PRP: Verified
PRP without proof (not generated)
2017-10-14Oliver KruseC-PRP
M2470241/121404802535892529 : 3DCD92D2CBC503C6
PRP: Verified
PRP without proof (not generated)