There are many methods to find the prime factors of a number, but one of the most common is to use a prime factor tree. Firstly, find two numbers that will multiply together to give 40. These are ...

Roots are the opposite of powers. As 2 squared is 4, then a square root of 4 must be 2. \(2^2 = 4\). Reversing this gives \(\sqrt{4} = 2\). To find square roots or cube roots, work backwards from ...