Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
4527979Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
23954457863291341.1old
692496520478391446.02008-09-30 21:35:32
5366169855652731548.92014-04-16 11:52:31
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
Verified2017-11-17Oliver Kruse1151D33035E2E99A3445872353
Verified2018-01-02kkmrkkblmbrbk1151D33035E2E99A3186752253
History
DateUserTypeResult
2023-06-25USAFSSNF-PM1
B1=336000, B2=220317240
2018-01-02kkmrkkblmbrbkC-PRP
M4527979/2395445786329/69249652047839/536616985565273 : 1151D33035E2E99A
PRP: Verified
PRP without proof (not generated)
2017-11-17Oliver KruseC-PRP
M4527979/2395445786329/69249652047839/536616985565273 : 1151D33035E2E99A
PRP: Verified
PRP without proof (not generated)
2014-04-16TJAOIF
Factor: 536616985565273
2008-09-30markrF
Factor: 69249652047839