All square numbers have an odd number of factors.
Square numbers have an odd number of factors.
Square numbers have an odd number of factors, but beyond that, any odd number can be a factor.
Square numbers have an odd number of factors. There are no square numbers in that range.
A perfect square has an odd number of factors. Factors of numbers always come in pairs -- except for perfect squares. Since the square root of a perfect square is listed only once on the list of factors, it results in a list with an odd number of factors.
Square numbers have an odd number of factors.
Square numbers have an odd number of factors.
All square numbers have an odd number of factors.
Square numbers have an odd number of factors.
Square numbers have an odd number of factors.
Squares have an odd number of factors.
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if a number has an odd number of factors it would be a perfect square
if a number has an odd number of factors it would be a perfect square
A perfect square has an odd number of factors.
Square numbers have an odd number of factors, but beyond that, any odd number can be a factor.
An even power. Square numbers have an odd number of factors.