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

PrimeNet Exponent Status

Exponent Range:





MnDetails
2292887
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 262
Factored
FactorDigitsBitsDate
499849367928.9old
ECM
DigitsB1Curves
2550000280 / 280
30250000120 / 640
Estimated T-Level: 25.9 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-11Oliver Kruse68F4189181BF59E91013
Verified
PRP without proof (not generated)
2017-11-22storm551068F4189181BF59E9181718113
History
DateUserTypeResult
2017-11-22storm5510C-PRPM2292887/499849367 : 68F4189181BF59E9
2017-10-11Oliver KruseC-PRPM2292887/499849367 : 68F4189181BF59E9
2016-04-24alpertronNF-PM1B1=500000, B2=15000000, E=12