Simplify Square Root of 64 to Radicals

Published on April 10, 2026

Pre-Algebra

Learn how to simplify the square root of 64 to its simplest radical form, which results in an integer.

Question

Answer

The problem asks to express in simplest radical form.
Step 1: Understand what “simplest radical form” means.
For a square root, simplest radical form means that the radicand (the number inside the square root) has no perfect square factors other than 1. If the radicand is itself a perfect square, then the square root can be simplified to an integer.
Step 2: Evaluate the square root of 64.
We need to find a number that, when multiplied by itself, equals 64.
We can test perfect squares:







Since , the square root of 64 is 8.
So, .
Step 3: Check if the result is in simplest radical form.
The result is 8, which is an integer. Integers do not have a radical sign, so they are considered to be in simplest radical form. Alternatively, we can think of 8 as , where the radicand 1 has no perfect square factors other than 1.
The final answer is .