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
2679811Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
17504407969085771650.6old
19510700355376731650.82008-09-07 19:40:54
ECM
DigitsB1Curves
2550000199 / 280
Estimated T-Level: 23.6
TF below 2^73 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-19Oliver Kruse9ECA6BDE690CD11B2146896653
Verified2017-12-03ATH9ECA6BDE690CD11B261568353
History
DateUserTypeResult
2019-07-04alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-12-03ATHC-PRP
M2679811/1750440796908577/1951070035537673 : 9ECA6BDE690CD11B
PRP: Verified
PRP without proof (not generated)
2017-10-19Oliver KruseC-PRP
M2679811/1750440796908577/1951070035537673 : 9ECA6BDE690CD11B
PRP: Verified
PRP without proof (not generated)
2008-09-07Will EdgingtonF
Factor: 1951070035537673