Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
8193413
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 267
Factored
FactorDigitsBitsDate
114707783926.8old
1079205216231675212092166.52020-05-19 10:25:26
1355912568649918704792166.92020-11-12 10:19:04
ECM
DigitsB1Curves
255000047 / 280
Estimated T-Level: 20.8
TF below 2^64 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2018-09-09ATH0AA9CF079D1AEC661225207353
Factored
PRP without proof (not generated)
2020-03-03Luigi Morelli0AA9CF079D1AEC661434169753
Factored
PRP without proof (not generated)
2020-05-20riccardo uberti0AA9CF079D1AEC662725539353
Verified
Certified Good
2020-11-12mrh0AA9CF079D1AEC663239612353
History
DateUserTypeResult
2022-10-03FlaukrotistNFno factor TF: 67-68
2022-03-05riccardo ubertiNF-PM1B1=3000000, B2=60000000
2021-06-02riccardo ubertiNF-PP1Start=6/5, B1=1500000, B2=30000000
2021-05-31riccardo ubertiNF-PP1Start=2/7, B1=1500000, B2=30000000
2020-11-12Ben DeloCERT
Proof certified good
2020-11-12mrhC-PRPM8193413/114707783/107920521623167521209/135591256864991870479 : 0AA9CF079D1AEC66
Proof Certified Good

Proof Power: 8

2020-11-12TJAOIFFactor: 135591256864991870479
2020-05-20riccardo ubertiC-PRPM8193413/114707783/107920521623167521209 : 0AA9CF079D1AEC66
2020-05-19TJAOIFFactor: 107920521623167521209
2020-03-03Luigi MorelliC-PRPM8193413/114707783 : 0AA9CF079D1AEC66
2018-09-09ATHC-PRPM8193413/114707783 : 0AA9CF079D1AEC66