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
2196473Factored
FactorDigitsBitsDate
2602167361788731547.9old
3788323821037132250412168.42022-11-08 03:32:48
180355462439054673488812373.92016-03-30 11:20:52
109859867656530791426198632683.22016-03-30 11:20:53
ECM
DigitsB1Curves
255000091 / 280
Estimated T-Level: 21.6 ⓘ
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-09Oliver Kruse837808D2F1A8A7E41013
Verified (Factored)2017-10-18Oliver Kruse3673A06FC4D2F029375513453
Verified (Factored)2017-11-19kkmrkkblmbrbk3673A06FC4D2F029399041153
Verified2022-11-14Poao3673A06FC4D2F0294188675053
P-1 factors
DateFactorB1B2
2016-03-301803554624390546734888150000015000000
2016-03-301098598676565307914261986350000015000000
History
DateUserTypeResult
2022-11-14curtiscCERT
PRP Certification
Proof certified good
2022-11-14PoaoC-PRP
M2196473/260216736178873/18035546243905467348881/10985986765653079142619863/378832382103713225041 : 3673A06FC4D2F029
PRP proof power = 7
PRP: Verified
Proof certified good
2022-11-08_p95holder_F-ECM
Factor: 378832382103713225041 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-19kkmrkkblmbrbkC-PRP
M2196473/260216736178873/18035546243905467348881/10985986765653079142619863 : 3673A06FC4D2F029
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-18Oliver KruseC-PRP
M2196473/260216736178873/18035546243905467348881/10985986765653079142619863 : 3673A06FC4D2F029
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-09Oliver KruseC-PRP
M2196473/260216736178873/18035546243905467348881/10985986765653079142619863 : 837808D2F1A8A7E4
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-30alpertronF-PM1
Factor: 198138272346869565283596976706667192847381423303 / (P-1, B1=500000, B2=15000000, E=12)