Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
15186331Factored
FactorDigitsBitsDate
3599025224579480603316072478.32023-03-30 01:27:50
ECM
DigitsB1Curves
255000014 / 280
Estimated T-Level: 20.3 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2003-04-27Stephen Wood545C5BF5C425483411705367
Verified (Factored)2005-09-22Marc Getty / Phil Fizur545C5BF5C42548348441640
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-06-29InsolentJaguar5DED2EA355393CBB11508159553
History
DateUserTypeResult
2023-11-04nordiNF-PM1
B1=480000, B2=454342350
2023-10-22nordiNF-PM1
B1=480000
2023-06-29curtiscCERT
PRP Certification
Proof certified good
2023-06-29InsolentJaguarC-PRP
M15186331/359902522457948060331607 : 5DED2EA355393CBB
PRP proof power = 8
PRP: Verified
Proof certified good
2023-03-30ATHF-PP1
Start=2/7, B1=1000000, B2=29000000, Factor: 359902522457948060331607
2021-10-10-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-03LaurVNF
no factor from 2^70 to 2^71
2021-07-06lycornNF
no factor from 2^69 to 2^70
2017-12-29ramgeisNF
no factor from 2^68 to 2^69
2017-12-29ramgeisNF
no factor from 2^67 to 2^68
2014-05-14NesowaNF
no factor from 2^66 to 2^67
2013-09-16David CampeauNF
no factor from 2^65 to 2^66