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
2490769
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
22267474871031.1old
ECM
DigitsB1Curves
2550000173 / 280
Estimated T-Level: 23.1
TF below 2^72 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 Kruse855F3F2A32B53FEA1109837853
Verified
PRP without proof (not generated)
2017-11-30storm5510855F3F2A32B53FEA1197897653
History
DateUserTypeResult
2019-07-04alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-30storm5510C-PRPM2490769/2226747487 : 855F3F2A32B53FEA
2017-10-14Oliver KruseC-PRPM2490769/2226747487 : 855F3F2A32B53FEA