Question: is 1 a square number?
Answer: A square number is the number given when an integer is multiplied by itself. It is called a square number because it gives the area of a square whose side length is an integer. , and so on. The first fifteen square numbers are: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196 and 225.