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.
Square numbers have an odd number of factors.
Yes, the factors of all odd numbers are odd numbers.
All nonzero numbers have factors. Some factors are even numbers, some factors are odd numbers.
Square numbers have an odd number of factors.
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.
Square numbers have odd numbers of factors.
1 and 5 are the factors of 20 which are odd.
Square numbers have an odd number of factors.
Squares have an odd number of factors.