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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Exponent Range:





MnDetails
2541089
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
7524672746811239.5old
ECM
DigitsB1Curves
2550000262 / 280
Estimated T-Level: 24.7
TF below 2^77 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-14Oliver Kruse23E1991B99C1EB771142483953
Verified
PRP without proof (not generated)
2017-12-01storm551023E1991B99C1EB771230192753
History
DateUserTypeResult
2022-08-24USAFSSNF-PM1B1=300000, B2=259451010
2017-12-01storm5510C-PRPM2541089/752467274681 : 23E1991B99C1EB77
2017-10-14Oliver KruseC-PRPM2541089/752467274681 : 23E1991B99C1EB77