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
3175607Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
234994919927.8old
ECM
DigitsB1Curves
255000058 / 280
Estimated T-Level: 21.0
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-31Oliver Kruse7C126AB7ABA345C4137925953
Verified2017-12-12kkmrkkblmbrbk7C126AB7ABA345C41289261653
History
DateUserTypeResult
2022-09-12JossNF-PM1
B1=1000000, B2=241175550
2022-02-27JossNF-PM1
B1=1000000, B2=134343300
2021-04-08JossNF
no factor from 2^67 to 2^68
2021-01-06JossNF-PM1
B1=317560, B2=3175607, E=6
2017-12-12kkmrkkblmbrbkC-PRP
M3175607/234994919 : 7C126AB7ABA345C4
PRP: Verified
PRP without proof (not generated)
2017-10-31Oliver KruseC-PRP
M3175607/234994919 : 7C126AB7ABA345C4
PRP: Verified
PRP without proof (not generated)