Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
2482771Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1056847955416438091856.6old
ECM
DigitsB1Curves
2550000127 / 280
Estimated T-Level: 22.3
TF below 2^69 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-14Oliver Kruse840D58FD31E76F611185874853
Verified2017-11-29storm5510840D58FD31E76F61187962953
History
DateUserTypeResult
2023-03-20Denial140NF-PM1
B1=1000000, B2=6493617900
2022-08-18USAFSSNF-PM1
B1=224000, B2=203668920
2017-11-29storm5510C-PRP
M2482771/105684795541643809 : 840D58FD31E76F61
PRP: Verified
PRP without proof (not generated)
2017-10-14Oliver KruseC-PRP
M2482771/105684795541643809 : 840D58FD31E76F61
PRP: Verified
PRP without proof (not generated)