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
2517049Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1119533054231236.7old
83530014132708879531962.92016-10-27 11:28:17
ECM
DigitsB1Curves
2550000124 / 280
Estimated T-Level: 22.2
TF below 2^69 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-15kkmrkkblmbrbkF7861BF5CAA8315D2225385553
Verified2017-11-08Oliver KruseF7861BF5CAA8315D2224187053
History
DateUserTypeResult
2019-07-04alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-08Oliver KruseC-PRP
M2517049/111953305423/8353001413270887953 : F7861BF5CAA8315D
PRP: Verified
PRP without proof (not generated)
2017-10-15kkmrkkblmbrbkC-PRP
M2517049/111953305423/8353001413270887953 : F7861BF5CAA8315D
PRP: Verified
PRP without proof (not generated)
2016-10-27TJAOIF
Factor: 8353001413270887953 / TF: 62-63