Four Fours/161

Puzzle

Using exactly $4$ instances of the number $4$, the task is to write an expression for $161$, using whatever arithmetical operations you consider necessary.

Solutions

Solution $1$

$161 = \dfrac {\paren {\map \Gamma 4}! \times {. \dot 4} + \sqrt 4} {\sqrt 4}$

Also see

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