Square root of 256

Sqrt(256). Find the square root of 256 or any other real number, positive or negative. Here are the answers to questions like: Square root of 256 or what is the square root of 256?

What is square root? Definition of square root

A square root of a number 'x' is a number y such that y² = x, in other words, a number y whose square is y. For example, 16 is the square root of 256 because 16² = 16•16 = 256, -16 is square root of 256 because (-16)² = (-16)•(-16) = 256. When writing math, people often use sqrt(x) to mean the square root of x. Read more about square root here: Square Root - Wikipedia and here: Square Root - Wolfram

Square Symbol?

Here is the square root symbol. It is is denoted by √, known as the radical sign or radix.

Square root of values around 256