Four Fours/Lemmata/Two Fours/4
< Four Fours | Lemmata | Two Fours
Jump to navigation
Jump to search
Puzzle
Using exactly $2$ instances of the number $4$, the task is to write an expression for $4$, using whatever arithmetical operations you consider necessary.
Solutions
Solution $1$
- $4 = \sqrt 4 + \sqrt 4$
Solution $2$
- $4 = \sqrt 4 \times \sqrt 4$
Solution $3$
- $4 = \sqrt 4 \uparrow \sqrt 4$
Solution $4$
- $4 = \dfrac {4!} {\map \Gamma 4}$
where $\Gamma$ denotes the Gamma function