Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnDetails
2434841
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
19478729824.2old
127001306571133.62008-07-14 20:23:52
118339895367531443.42008-09-30 14:37:01
ECM
DigitsB1Curves
2550000160 / 280
Estimated T-Level: 22.9
TF below 2^71 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 Kruse038609F3D227DE4A3121092753
Verified
PRP without proof (not generated)
2017-11-27storm5510038609F3D227DE4A3178420453
History
DateUserTypeResult
2018-09-28alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-27storm5510C-PRPM2434841/19478729/12700130657/11833989536753 : 038609F3D227DE4A
2017-10-13Oliver KruseC-PRPM2434841/19478729/12700130657/11833989536753 : 038609F3D227DE4A
2008-09-30markrFFactor: 11833989536753
2008-07-14George WoltmanF-ECMFactor: 12700130657