In mathematics a square number sometimes also called a perfect square is an integer that is the square of an integer. Square Numbers from 1 to 100. For example 25 is a square number since it can be written as 5 5.
We have two consecutive numbers n and n1 Their squares are n 2 and n1 2.
They usually have a difference of 1 between every two numbers. The difference is n1 2 n 2 n 2 2n 1 n 2 2n 1. 40 45 50 and 55 are consecutive multiples of 5. When you multiply an integer a whole number positive negative or zero times itself the resulting product is called a square number or a perfect square or simply a square So 0 1 4 9 16 25 36 49 64 81 100 121 144 and so on are all square numbers.