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
2478029Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
94165103826.5old
654199657929.32008-07-14 20:24:11
ECM
DigitsB1Curves
2550000152 / 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
Verified2017-10-14Oliver KruseA45E2C6610ACD28E2184668253
Verified2017-11-29kkmrkkblmbrbkA45E2C6610ACD28E291617053
History
DateUserTypeResult
2019-07-04alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-29kkmrkkblmbrbkC-PRP
M2478029/94165103/654199657 : A45E2C6610ACD28E
PRP: Verified
PRP without proof (not generated)
2017-10-14Oliver KruseC-PRP
M2478029/94165103/654199657 : A45E2C6610ACD28E
PRP: Verified
PRP without proof (not generated)
2008-07-14George WoltmanF-ECM
Factor: 654199657