Definition of Square Number

Square Number

If a number is multiplied by itself, the product so formed is called the square of that number.

If ‘a’ is a number then the square of a is written a²  and is given by

a²  = a x a.

Example: 3 × 3 = 9, we say that 9 is the square number of 3.

Other examples of square numbers

• 1 × 1 = 1²= 1, we say that 1 is the square number of 1.
• 2 × 2 = 2²= 4, we say that 4 is the square number of 2.
• 4 × 4 = 4²= 16, we say that 16 is the square number of 4.
• 5 × 5 = 5²= 25, we say that 25 is the square number of 5.

Thus, the square of a number is a number raised to the power 2.

See More

Squares and Square Roots