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[[Puzzles]] | [[Puzzles/Arithmetical puzzles|Arithmetical puzzles]] | Four 4's equal...

Use exactly four 4's to form ''every [[wikipedia:integer|integer]] from 1 to 50'', using only the operators '<math>+</math>', '<math>-</math>', '<math>\times</math>', '<math>/</math>', '()' (brackets) <math>x^2</math> (square), and '!' ([[wikipedia:factorial|factorial]]). The square and factorial operators should be used as sparingly as possible. If 44 (which is 4 x 10 + 4) can be avoided, avoid it. In this version of the problem, the square root operator is not allowed.

[[Puzzles/Arithmetical puzzles/Four 4s Equal.../Solution| solution]]

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