Four Fours/63/Solutions
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Puzzle: Four Fours: $63$
Using exactly $4$ instances of the number $4$, the task is to write an expression for $63$, using whatever arithmetical operations you consider necessary.
Solutions
Solution $1$
- $63 = \dfrac {4!} {.4} + \sqrt {\dfrac 4 {. \dot 4} }$