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
8078177
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 267
Factored
FactorDigitsBitsDate
44913914828018064055710172581.9old
LL
StatusDateUserResidueShiftSoftware
Factored1999-12-01Alan Vidmar092D65948380B524760996Windows,Prime95,v19,NT service,(aka WV5)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-08-02Martin Russell8AC815254CA3915A1633273553
Verified
PRP without proof (not generated)
2020-04-28Chang Chia-Tche8AC815254CA3915A1569145653
History
DateUserTypeResult
2024-02-26Stef42NF-PM1B1=950000, B2=2044750890
2020-04-28Chang Chia-TcheC-PRP
M8078177/4491391482801806405571017 : 8AC815254CA3915A
2018-08-02Martin RussellC-PRP
M8078177/4491391482801806405571017 : 8AC815254CA3915A
2002-07-20-anonymous-F-PM1Factor: 4491391482801806405571017
1999-12-01vidmarC-LL092D65948380B524
1998-12-13Lars FrickeNFno factor TF: 1-63
1998-09-20-anonymous-NFno factor TF: 1-62
1998-08-24S00030NFno factor TF: 1-61