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:










MnStatusDetails
12666361Factored
FactorDigitsBitsDate
2093293071785954952012167.52022-09-22 09:42:49
197560513078040491834332374.1old
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2022-04-30XZT0A859A949E632D221155797053
Verified2022-10-05kracker0A859A949E632D222172879853
History
DateUserTypeResult
2022-10-05krackerC-PRP
M12666361/19756051307804049183433/209329307178595495201 : 0A859A949E632D22
PRP: Verified
PRP without proof (not generated)
2022-09-25LordJuliusNF
no factor from 2^66 to 2^67
2022-09-25LordJuliusNF
no factor from 2^65 to 2^66
2022-09-25LordJuliusNF
no factor from 2^64 to 2^65
2022-09-22TJAOIF
Factor: 209329307178595495201 / TF: 67-68
2022-04-30Jim DonovanCERT
PRP Certification
Proof certified good
2022-04-30XZTC-PRP
M12666361/19756051307804049183433 : 0A859A949E632D22
PRP proof power = 8
PRP: Verified (Factored)
Proof certified good
2022-04-23nordiNF-PM1
B1=400000, B2=428459850
2022-04-04nordiNF-PM1
B1=400000