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
39644207Factored
FactorDigitsBitsDate
72237564603461041332307141167564084529739129.12021-05-03 21:51:14
LL
StatusDateUserResidueShift
Verified (Factored)2008-03-22Sergey Repetov7186D6D4E9B7651818152174
Verified (Factored)2015-09-29-Anonymous-7186D6D4E9B7651826909508
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-02-28Dobri478CD8B70E9DC78612175254953
P-1 factors
DateFactorB1B2
2021-05-03722375646034610413323071411675640845297150000045000000
History
DateUserTypeResult
2023-02-28curtiscCERT
PRP Certification
Proof certified good
2023-02-28DobriC-PRP
M39644207/722375646034610413323071411675640845297 : 478CD8B70E9DC786
PRP proof power = 9
PRP: Verified
Proof certified good
2021-05-03Sid & AndyF-PM1
Factor: 722375646034610413323071411675640845297 / (P-1, B1=1500000, B2=45000000)
2020-02-14-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-13-Anonymous-NF
no factor from 2^72 to 2^73
2019-07-26monstNF
no factor from 2^71 to 2^72
2015-09-29-Anonymous-C-LL
7186D6D4E9B76518
2014-12-14XyzzyNF
no factor from 2^70 to 2^71
2014-12-14XyzzyNF
no factor from 2^69 to 2^70
2013-10-01Carsten KossendeyNF
no factor from 2^68 to 2^69