What is 4 squared?

4 squared is equal to 16. This means that if you multiply 4 by itself, the result is 16. It is also represented as 4² or 4^2. In geometry, squaring a number is often used when finding the area of a square, as the area of a square is equal to its side length squared. In mathematics, squaring a number is a type of exponentiation and is used in various formulas and equations.