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
8413609Factored
FactorDigitsBitsDate
17073920594940282755272270.52021-05-03 03:34:28
ECM
DigitsB1Curves
255000011 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-11-10Robert BothaB1441DEB726D7D673603273
Verified (Factored)2002-10-26Brandon S HigaB1441DEB726D7D673622291
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-05-04M8909387947365BA1BC594C71223588153
History
DateUserTypeResult
2021-05-04curtiscCERT
PRP Certification
Proof certified good
2021-05-04M8909387C-PRP
M8413609/1707392059494028275527 : 947365BA1BC594C7
PRP proof power = 8
PRP: Verified
Proof certified good
2021-05-03NumberwangF-PP1
Start=80/13, B1=600000, B2=18000000, Factor: 1707392059494028275527
2021-04-30Kirill FrolovNF-PM1
B1=600000, B2=18000000, e=12
2020-01-17TJAOINF
no factor from 2^68 to 2^69
2018-02-27monstNF
no factor from 2^67 to 2^68
2016-01-06snme2pm1NF
no factor from 2^66 to 2^67
2015-05-25VictordeHollanderNF
no factor from 2^65 to 2^66
2014-12-03David CampeauNF
no factor from 2^64 to 2^65
2014-03-18lycornNF
no factor from 2^64 to 2^65
2012-06-28bcp19NF-PM1
B1=100000, B2=1825000, E=6