Question

Which of the following are the methods of finding square roots?

• A. Repeated subtraction
• B. Prime factorisation
• C. Long division
• D. All of the above.

Answer 1

The correct option is D All of the above.

There are 3 methods to find square root of a number:
1. Repeated subtraction: The sum of successive odd numbers is a square number and the number of steps is the square root of that square number.

2. Prime factorisation: Factorising the given number to its prime factors and combining them to find the square root.

3. Long division: Exploiting division algorithm to find the square root.