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

PrimeNet Exponent Status

Exponent Range:





MnDetails
2321443
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 262
Factored
FactorDigitsBitsDate
1761774980644623191857.3old
3654177028991381035362750892788.22025-01-21 15:13:19
ECM
DigitsB1Curves
2550000280 / 280
30250000133 / 640
Estimated T-Level: 26.0
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2017-10-11Oliver KruseEB2D656AB5F49C4F1013
Factored
PRP without proof (not generated)
2017-11-23storm5510EB2D656AB5F49C4F110915113
Verified
Certified Good
2025-01-21MarkS4BDE2E83835298A9212161953
History
DateUserTypeResult
2025-01-21Torchwood InstituteCERT
Proof certified good
2025-01-21MarkSC-PRPM2321443/176177498064462319/365417702899138103536275089 : 4BDE2E83835298A9
Proof Certified Good

Proof Power: 7

2025-01-21MarkSF-ECMFactor: 365417702899138103536275089 / ECM curve 26, B1=78051, B2=62268570, Edwards Sigma=7723611510671674
2021-04-24ViliamFNF-PM1B1=5000000, B2=500000000
2018-03-05alpertronNF-PM1B1=500000, B2=15000000, E=12
2017-11-23storm5510C-PRPM2321443/176177498064462319 : EB2D656AB5F49C4F
2017-10-11Oliver KruseC-PRPM2321443/176177498064462319 : EB2D656AB5F49C4F