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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 a and is given by


a = a x a.Square Number

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