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.
Yes. If a number ends in an odd number, as in 75, any factors cannot be even
45
Well, isn't that a happy little question! To find the greatest odd factor of a number, you simply need to look for the largest odd number that can divide it evenly. Start by finding all the factors of the number, then pick the largest odd number from that list. Just remember, there are no mistakes, only happy little accidents in math!
15 does.
All nonzero numbers have factors. Some factors are odd numbers. 3 is an odd factor of 12.
All nonzero numbers have factors. Some factors are even numbers, some factors are odd numbers.
No. Perfect square numbers have an odd number of factors.
Square numbers have an odd number of factors.
Yes. An even number is defined as being evenly divisible by 2 (no fractional answers, only integers). If an odd number has an even factor, then because of the above definition, this odd number must have a factor of 2. But you will be hard pressed to find an odd number that is a multiple of 2, because that is already the definition of an even number. So, odd numbers cannot have even factors and thus odd numbers always have odd factors.