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
2413913Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
57933913825.8old
995988418344831371756.52015-04-06 10:43:28
ECM
DigitsB1Curves
2550000143 / 280
Estimated T-Level: 22.6
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 Kruse2BA7CB6756E0CB192145453
Verified2017-11-26ATH2BA7CB6756E0CB192118315353
History
DateUserTypeResult
2018-09-28alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-26ATHC-PRP
M2413913/57933913/99598841834483137 : 2BA7CB6756E0CB19
PRP: Verified
PRP without proof (not generated)
2017-10-13Oliver KruseC-PRP
M2413913/57933913/99598841834483137 : 2BA7CB6756E0CB19
PRP: Verified
PRP without proof (not generated)
2015-04-06TJAOIF
Factor: 99598841834483137 / TF: 56-57