Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
12067273Factored
FactorDigitsBitsDate
873457580614745844732066.22015-02-08 16:36:38
LL
StatusDateUserResidueShift
Verified (Factored)2002-02-10Ars Technica Team Prime RibD95CAA090988FCF311771790
Verified (Factored)2004-05-25Ars Technica Team Prime RibD95CAA090988FCF3654681
Verified (Factored)2004-07-26S57483D95CAA090988FCF37238464
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-01-14RichD0B3F76C8CB9830D5F1361938753
History
DateUserTypeResult
2023-10-24nordiNF-PM1
B1=500000, B2=287291550
2023-10-17nordiNF-PM1
B1=500000
2022-04-10LordJuliusNF
no factor from 2^67 to 2^68
2022-01-14VikkiMtFCERT
PRP Certification
Proof certified good
2022-01-14RichD0C-PRP
M12067273/87345758061474584473 : B3F76C8CB9830D5F
PRP proof power = 8
PRP: Verified
Proof certified good
2015-02-08ThaF
Factor: 87345758061474584473 / TF: 66-67
2013-10-03NesowaNF
no factor from 2^65 to 2^66
2013-09-23lycornNF
no factor from 2^64 to 2^65