Square numbers have an odd number of factors, but beyond that, any odd number can be a factor.
Yes, the factors of all odd numbers are odd numbers.
Square numbers have an odd number of factors.
Perfect squares are numbers with an odd number of factors.
The odd factors of 90 are 1,3,5,9 and 15.
The odd composite factors of 90 are: 9, 15, 45
Yes. Square numbers have an odd number of factors. 49 has three factors.
Yes, the factors of all odd numbers are odd numbers.
Square numbers have an odd number of factors.
All nonzero numbers have factors. Some factors are even numbers, some factors are odd numbers.
Square numbers have an odd number of factors.
Both odd and even numbers may have odd numbers as factors.
Because 55 is an odd number. All the factors of odd numbers are odd.
Perfect squares have an odd number of factors.
Square numbers have an odd number of factors.
Perfect squares are numbers with an odd number of factors.
Squares have an odd number of factors.
Square numbers have odd numbers of factors.