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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Exponent Range:





MnDetails
2119363
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 262
Factored
FactorDigitsBitsDate
84296900354331342.9old
4209962579287500411858.52015-09-14 11:21:52
ECM
DigitsB1Curves
2550000280 / 280
30250000192 / 640
Estimated T-Level: 26.5 ⓘ
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP
StatusProofDateUserResidueShiftTypeBase
Factored
Certified Good
Power=7
2026-09-16Jason LynchE2E809C084EE9D7147386313
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2017-09-30alpertron1535EE1FCD2C7D732013
Verified
PRP without proof (not generated)
2017-10-21Oliver Kruse1535EE1FCD2C7D73253985113
History
DateUserTypeResult
2026-09-17Hermann_DanneCERT
Proof certified good
2026-09-16Jason LynchC-PRPE2E809C084EE9D71
Proof Certified Good

Proof Power: 7

2017-10-21Oliver KruseC-PRP
M2119363/8429690035433/420996257928750041 : 1535EE1FCD2C7D73
2017-09-30alpertronC-PRPM2119363/420996257928750041/8429690035433 : 1535EE1FCD2C7D73
2016-03-28alpertronNF-PM1B1=500000, B2=15000000, E=12
2015-09-14TJAOIFFactor: 420996257928750041