Q. What is the square root of 4?

The square root of 4 is a number that, when multiplied by itself, gives 4 as the result. There are two possible values for the square root of 4: 2 and -2. This is because both 2 and -2, when squared, equal 4. The square root of 4 is often written as √4 or 4^(1/2).