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

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Exponent Range:










MnStatusDetails
9000317Factored
FactorDigitsBitsDate
488404428418905484378487938274331101.92018-03-16 07:48:21
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Sturle SundeA2C2AAD28C684B8C0
Verified (Factored)Kevin D. QuittA2C2AAD28C684B8C6828991
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2019-05-22Niels_Mache_Nextcloud90C5D00869C487EC1507254253
Verified2019-07-02timbit90C5D00869C487EC1612977753
P-1 factors
DateFactorB1B2
2018-03-16488404428418905484378487938274325000000
History
DateUserTypeResult
2021-03-15ViliamFNF-PM1
B1=1000000, B2=76000000
2019-07-02timbitC-PRP
M9000317/4884044284189054843784879382743 : 90C5D00869C487EC
PRP: Verified
PRP without proof (not generated)
2019-05-22Niels_Mache_NextcloudC-PRP
M9000317/4884044284189054843784879382743 : 90C5D00869C487EC
PRP: Verified
PRP without proof (not generated)
2018-03-16mikrF-PM1
Factor: 4884044284189054843784879382743 / (P-1, B1=2500000)
2016-01-17ramgeisNF
no factor from 2^70 to 2^71
2014-09-04NesowaNF-PM1
B1=425000, B2=8393750, E=12
2014-03-24ramgeisNF
no factor from 2^69 to 2^70
2014-03-24ramgeisNF
no factor from 2^68 to 2^69
2014-03-24ramgeisNF
no factor from 2^67 to 2^68
2014-03-24ramgeisNF
no factor from 2^66 to 2^67