### Possible Answer

What is the greatest common factor of 21 and 44? The only proper divisors of 21 are 3 and 7. The only proper divisors of 44 are 2,4 and 11. So, could it be that there are no common factors? - read more

What is the greatest common factor of 21 and 44? The only proper divisors of 21 are 3 and 7. The only proper divisors of 44 are 2,4 and 11. So, could it be that there are no common factors? - read more

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