Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
9570943Factored
FactorDigitsBitsDate
32458109820046964749212271.52014-10-15 15:26:36
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2000-04-19Bob Tykulsker80F04A86FB08795F7064102
Verified (Factored)2003-06-06Gord Palameta80F04A86FB08795F834905
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2019-09-26mnd98FF995447BB2B7561612712953
Verified2020-12-12Richard Thomas8FF995447BB2B7561620090853
History
DateUserTypeResult
2020-12-12curtiscCERT
PRP Certification
Proof certified good
2020-12-12Richard ThomasC-PRP
M9570943/3245810982004696474921 : 8FF995447BB2B756
PRP proof power = 8
PRP: Verified
Proof certified good
2019-09-26mnd9C-PRP
M9570943/3245810982004696474921 : 8FF995447BB2B756
PRP: Verified
PRP without proof (not generated)
2014-10-15swildnerF-ECM
Factor: 3245810982004696474921 / (ECM curve 2, B1=50000, B2=5000000)
2013-08-31David CampeauNF
no factor from 2^64 to 2^65
2013-01-19NesowaNF-PM1
B1=115000, B2=2185000, E=6