perfect squares also known as square numbers
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square numbers
Square numbers have odd numbers of factors.
Square numbers.
They are square numbers.
squares
Yes.
Yes, the factors of all odd numbers are odd numbers.
50
Both odd and even numbers may have odd numbers as factors.
4, 9, 16 and 25 are square numbers.
Yes. Square numbers have an odd number of factors. 49 has three factors.
Perfect squares have an odd number of factors.