What is Perfect Squares ?
Any number that can be written as an integer to the power of two is called a perfect square. For example,4 can be written as 2^{2}4 is a "perfect square." The first 5 perfect squares are 1, 4, 9, 16, 25.
1=1^{2}4=2^{2}9=3^{2}16=4^{2}25=5^{2}