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
9774689Factored
FactorDigitsBitsDate
17823259076730486966172270.62015-01-15 08:47:20
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2000-10-07Mateusz99B0DC9B98A59B439757743
Verified (Factored)2003-08-25Stephen V Robinson99B0DC9B98A59B439140359
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2019-10-25mnd91B20523F47699D731403011353
Verified2020-12-30kutens1B20523F47699D731395206653
History
DateUserTypeResult
2023-05-11This -Anonymous-NF-PM1
B1=100000, B2=5000000, E=6
2020-12-30Mark_JohnsonCERT
PRP Certification
Proof certified good
2020-12-30kutensC-PRP
M9774689/1782325907673048696617 : 1B20523F47699D73
PRP proof power = 8
PRP: Verified
Proof certified good
2019-10-25mnd9C-PRP
M9774689/1782325907673048696617 : 1B20523F47699D73
PRP: Verified
PRP without proof (not generated)
2015-01-15Sid & AndyF-ECM
Factor: 1782325907673048696617 / (ECM curve 1, B1=50000, B2=5000000)
2013-08-25NesowaNF
no factor from 2^64 to 2^65