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
2444873
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
762800377929.5old
ECM
DigitsB1Curves
2550000104 / 280
Estimated T-Level: 21.9
TF below 2^68 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 KruseEEF913D7175F40D01122255853
Verified
PRP without proof (not generated)
2017-11-28storm5510EEF913D7175F40D0121214153
History
DateUserTypeResult
2018-09-28alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-28storm5510C-PRPM2444873/762800377 : EEF913D7175F40D0
2017-10-13Oliver KruseC-PRPM2444873/762800377 : EEF913D7175F40D0