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
4569259Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
360253995951831445.0old
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-17kkmrkkblmbrbkE0057203F59B09B61145050553
Verified2018-02-22ATHE0057203F59B09B61385555853
History
DateUserTypeResult
2023-04-12USAFSSNF-PM1
B1=480000, B2=262474170
2018-02-22ATHC-PRP
M4569259/36025399595183 : E0057203F59B09B6
PRP: Verified
PRP without proof (not generated)
2017-11-17kkmrkkblmbrbkC-PRP
M4569259/36025399595183 : E0057203F59B09B6
PRP: Verified
PRP without proof (not generated)