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
1325063Factored
FactorDigitsBitsDate
2650127721.3old
67720466834578146311962.62015-01-28 18:46:38
180268332232029484392064.02015-01-28 18:46:38
586476345367655601824892375.62018-06-08 13:20:24
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver Kruse321899D787C93D463013
Verified (Factored)2017-10-23kkmrkkblmbrbk321899D787C93D46390776313
Verified2018-06-10Daniil TsarkovBF2F51BAB86CAAC24131723153
Verified2018-06-11Hazar TemizelBF2F51BAB86CAAC2492372753
P-1 factors
DateFactorB1B2
2015-01-281802683322320294843950000015000000
2015-01-28677204668345781463150000015000000
History
DateUserTypeResult
2018-06-11Hazar TemizelC-PRP
M1325063/2650127/18026833223202948439/6772046683457814631/58647634536765560182489 : BF2F51BAB86CAAC2
PRP: Verified
PRP without proof (not generated)
2018-06-10Daniil TsarkovC-PRP
M1325063/2650127/6772046683457814631/18026833223202948439/58647634536765560182489 : BF2F51BAB86CAAC2
PRP: Verified
PRP without proof (not generated)
2018-06-08TJAOIF-ECM
Factor: 58647634536765560182489 / (ECM curve 16, B1=50000, B2=5000000)
2017-10-23kkmrkkblmbrbkC-PRP
M1325063/2650127/18026833223202948439/6772046683457814631 : 321899D787C93D46
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1325063/2650127/18026833223202948439/6772046683457814631 : 321899D787C93D46
PRP: Verified
PRP without proof (not generated)
2017-09-30Oliver KruseC-PRP
M1325063/2650127/18026833223202948439/6772046683457814631 : 321899D787C93D46
PRP without proof (not generated)
2015-01-28alpertronF-PM1
Factor: 122078556142438673612329176314712811009 / (P-1, B1=500000, B2=15000000, E=12)