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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MnDetails
2446753
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
3383712593831238.3old
126130625242727991753.52014-09-26 11:34:15
ECM
DigitsB1Curves
2550000235 / 280
Estimated T-Level: 24.2 ⓘ
TF below 2^75 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-13Oliver Kruse61033C958CADF3C82237051553
Verified
PRP without proof (not generated)
2017-10-15Yaroslav BerezhkoA6F77EA72A384ACE2013
Verified
PRP without proof (not generated)
2017-11-28storm551061033C958CADF3C82223982853
Verified
PRP without proof (not generated)
2017-12-04kkmrkkblmbrbkA6F77EA72A384ACE268966213
History
DateUserTypeResult
2018-09-28alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-12-04kkmrkkblmbrbkC-PRPM2446753/338371259383/12613062524272799 : A6F77EA72A384ACE
2017-11-28storm5510C-PRPM2446753/338371259383/12613062524272799 : 61033C958CADF3C8
2017-10-15Yaroslav BerezhkoC-PRPM2446753/338371259383/12613062524272799 : A6F77EA72A384ACE
2017-10-13Oliver KruseC-PRPM2446753/338371259383/12613062524272799 : 61033C958CADF3C8
2014-09-26TJAOIFFactor: 12613062524272799