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
5505989
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 266
Factored
FactorDigitsBitsDate
111567199815022758412063.32008-11-02 06:17:09
LL
StatusDateUserResidueShiftSoftware
Factored1999-11-10Eric Hahn7B9308E8E2E28AB31010289Windows,Prime95,v18,(aka WU1)
Factored2000-08-31Nayan Hajratwala7B9308E8E2E28AB31605625Windows,Prime95,v19,(aka WV1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-12-04kkmrkkblmbrbkC358569A2A89849A1289380953
Verified
PRP without proof (not generated)
2018-07-01storm5510C358569A2A89849A1367112453
History
DateUserTypeResult
2025-05-09Sid & AndyNFno factor TF: 68-70
2021-09-23Dylan DelgadoNF-PM1B1=2350000, B2=213850000
2018-07-01storm5510C-PRPM5505989/11156719981502275841 : C358569A2A89849A
2017-12-04kkmrkkblmbrbkC-PRPM5505989/11156719981502275841 : C358569A2A89849A
2008-11-02Jayson KingFFactor: 11156719981502275841
2000-08-31Nayan HajratwalaC-LL7B9308E8E2E28AB3
1999-11-10Net_ForceC-LL7B9308E8E2E28AB3
1999-06-15-anonymous-NFno factor TF: 1-62
1998-04-11Sturle SundeNFno factor TF: 1-61