15 does.
All square numbers have an odd number of factors.
1155
45
All nonzero numbers have factors. Some factors are odd numbers. The largest of these would be the greatest odd factor. Of course, the greatest odd factor of any odd number is the number itself.
All nonzero numbers have factors. Some factors are odd numbers. 3 is an odd factor of 12.
15 has four factors.
Any odd number.
All odd numbers have odd factors.
Because 55 is an odd number. All the factors of odd numbers are odd.
All square numbers have an odd number of factors.
The number 175 is an odd number. This number, 175 has four positive factors (35,5 and 25,7). These number are all positive and when multiplies equal 175.
1155
45
Yes. If a number ends in an odd number, as in 75, any factors cannot be even
All nonzero numbers have factors. Some factors are odd numbers. The largest of these would be the greatest odd factor. Of course, the greatest odd factor of any odd number is the number itself.
Square numbers have an odd number of factors. All others are even.
All nonzero numbers have factors. Some factors are odd numbers. 3 is an odd factor of 12.