The GCF is 1.
9 I think
no, then it would no longer be a factor of 9
The GCF is 3.
The Greatest Common Factor depends upon the numbers for which there are common factors and it is the greatest one of them; it can be greater than 18, for example the greatest common factor of 40 and 100 is 20. The greatest common factor must be one of the factors of each of the numbers. As the factors of each number cannot be greater than that number, the greatest common factor of a set of numbers cannot be greater than the least number. If this number is not greater than 18 then the greatest common factor of the numbers cannot be greater than 18. Even if the least number is greater than 18 it is possible that the greatest common factor of a set of numbers is still not greater than 18, for example the greatest common factor of 20, 30 and 50 is 10.
The greatest common factor is 9 because 18 is divisible by 9 and so is 45. It can not be greaater than half of 18 and 45 is not divisible by 18.
Since 91 and 9 don't have any common multiples, 9/91 cannot be simplified.
9 is not a factor of 24, common or otherwise.
The GCF of 45 and 54 is 9. The GCF can't be greater than the difference between the numbers, which is 9 in this case. Since 9 is a factor of both 45 and 54, it is the GCF.
The least common factor of 4 and 9 is is: 1
The Greatest Common Factor (GCF) is: 9
The Greatest Common Factor (GCF) is: 9
The common factor is 1.