Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
2362651Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
557396623931135.7old
ECM
DigitsB1Curves
2550000219 / 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
Verified2017-10-12Oliver KruseC7FA666151B9B6171153827553
Verified2017-11-24kkmrkkblmbrbkC7FA666151B9B617153963253
History
DateUserTypeResult
2018-04-27alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-24kkmrkkblmbrbkC-PRP
M2362651/55739662393 : C7FA666151B9B617
PRP: Verified
PRP without proof (not generated)
2017-10-12Oliver KruseC-PRP
M2362651/55739662393 : C7FA666151B9B617
PRP: Verified
PRP without proof (not generated)