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

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Exponent Range:










MnStatusDetails
14093899Factored
FactorDigitsBitsDate
6685033239389167251305692479.12021-09-13 21:18:55
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Bad2002-03-31Doug Shaw561C9A5C2A74CF5412493847
Verified (Factored)2005-04-26Ars Technica Team Prime Rib9E4E417787DF637E11806032
Verified (Factored)2006-02-01Shane Sanford9E4E417787DF637E10287604
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2022-12-24Funky Waddle316C81B96A8BB68E11185718453
History
DateUserTypeResult
2022-12-24mattashiiCERT
PRP Certification
Proof certified good
2022-12-24Funky WaddleC-PRP
M14093899/668503323938916725130569 : 316C81B96A8BB68E
PRP proof power = 8
PRP: Verified
Proof certified good
2021-09-13masserF-PP1
Start=2/7, B1=1000000, Factor: 668503323938916725130569
2021-08-09masserNF
no factor from 2^71 to 2^72
2020-09-10masserNF-PM1
B1=7000000, B2=210000000, E=12
2020-08-10masserNF
no factor from 2^70 to 2^71
2020-08-10masserNF
no factor from 2^69 to 2^70
2018-02-05ramgeisNF
no factor from 2^68 to 2^69
2018-02-05ramgeisNF
no factor from 2^67 to 2^68
2015-08-23ThaNF
no factor from 2^66 to 2^67
2014-07-22NesowaNF
no factor from 2^65 to 2^66