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
2730703Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
732483772731136.1old
440166906996270143292065.32018-08-16 12:24:40
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
Verified (Factored)2017-10-20Oliver Kruse0C7CF1F8FC4D2DF0199461953
Verified (Factored)2017-12-05kkmrkkblmbrbk0C7CF1F8FC4D2DF01256131753
Verified2018-08-20Oliver Kruse0C7CF1F8FC4D2DF02266124053
History
DateUserTypeResult
2022-11-18USAFSSNF-PM1
B1=255000, B2=191586780
2018-08-20Oliver KruseC-PRP
M2730703/73248377273/44016690699627014329 : 0C7CF1F8FC4D2DF0
PRP: Verified
PRP without proof (not generated)
2018-08-16TJAOIF
Factor: 44016690699627014329 / TF: 65-66
2017-12-05kkmrkkblmbrbkC-PRP
M2730703/73248377273 : 0C7CF1F8FC4D2DF0
PRP: Verified
PRP without proof (not generated)
2017-10-20Oliver KruseC-PRP
M2730703/73248377273 : 0C7CF1F8FC4D2DF0
PRP: Verified
PRP without proof (not generated)