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Calculus Level 2

Find the largest number among the following :\[\color {green}{\sqrt [1]{1},\sqrt [2]{2},\sqrt [3]{3},\sqrt [4]{4},\sqrt [5]{5},\sqrt [6]{6},\sqrt [7]{7}}\]If the largest number is of the form \(\sqrt [n]{n}\), enter the value of \(n+n\).

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