A perfect square.
Square #s
Square numbers have an odd number of factors.
A perfect square has an odd number of factors.
Both odd and even numbers may have odd numbers as factors.
A perfect square.
A perfect square.
A square number.
A square number.
Square numbers have odd numbers of factors. Examples: 4, 9, 16
Square numbers have an odd number of factors.
Square numbers
A perfect square
square numbers