Question

Is the square root of 25 an integer because it equals 5 which is an integer?

Answer 1

An integer is also called a whole number .

Explanation:

It is not usual for square roots to be integers.
This only happens if the number under de root is a square.
This is because square-rooting is just the opposite operation from squaring.

`sqrtx` means: give me the number of which `x` is the square.

Example with non-integer:
`sqrt2=1.414213562...` (this goes on, but NO calculator can give all the decimals), because `1.414213562...^2=2`