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
2345129
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 262
Factored
FactorDigitsBitsDate
878203907931136.4old
79602407993343183966172272.82026-01-16 08:24:30
ECM
DigitsB1Curves
2550000280 / 280
30250000123 / 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)
2017-10-12Oliver Kruse7AE729FCFE2E19A91013
Factored
PRP without proof (not generated)
2017-11-24storm55107AE729FCFE2E19A9144447813
Verified
Certified Good
2026-01-21Oliver KruseEE6888C94931FF292164044953
History
DateUserTypeResult
2026-01-21fre_gamesCERT
Proof certified good
2026-01-21Oliver KruseC-PRPM2345129/87820390793/7960240799334318396617 : EE6888C94931FF29
Proof Certified Good

Proof Power: 7

2026-01-16TJAOIF-ECMFactor: 7960240799334318396617 / ECM curve 35, B1=250000, B2=252249855, Edwards Sigma=5363330057567151
2018-03-18alpertronNF-PM1B1=500000, B2=15000000, E=12
2017-11-24storm5510C-PRPM2345129/87820390793 : 7AE729FCFE2E19A9
2017-10-12Oliver KruseC-PRPM2345129/87820390793 : 7AE729FCFE2E19A9