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
2430671Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
70781139531032.7old
ECM
DigitsB1Curves
2550000151 / 280
Estimated T-Level: 22.7
TF below 2^70 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-13Oliver KruseA17D0836496713A3181685953
Verified2017-11-27storm5510A17D0836496713A31237084453
History
DateUserTypeResult
2018-09-28alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-27storm5510C-PRP
M2430671/7078113953 : A17D0836496713A3
PRP: Verified
PRP without proof (not generated)
2017-10-13Oliver KruseC-PRP
M2430671/7078113953 : A17D0836496713A3
PRP: Verified
PRP without proof (not generated)