Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
12891829Factored
FactorDigitsBitsDate
4090319505131238.6old
201193889881357851195612374.12022-05-19 03:50:44
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-05-26XZTD72BC04C48C8B7BB2596341253
P-1 factors
DateFactorB1B2
2022-05-1920119388988135785119561400000428459850
History
DateUserTypeResult
2022-05-26Ruslan BorisovCERT
PRP Certification
Proof certified good
2022-05-26XZTC-PRP
M12891829/409031950513/20119388988135785119561 : D72BC04C48C8B7BB
PRP proof power = 8
PRP: Verified
Proof certified good
2022-05-19nordiF-PM1
Factor: 20119388988135785119561 / (P-1, B1=400000, B2=428459850)
2022-05-14nordiNF-PM1
B1=400000