They are co-prime.
Answer: None, it is impossible. No single number has a greatest common factor. A "common factor" is a factor that two or more numbers have in common. The "greatest common factor" is the largest factor that two or more numbers have in common.
The greatest common factor is also one of the two numbers being factored when that number is a factor of the other one.
Yes, if one of the numbers is a factor of the other.
There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.
That happens when one of the numbers is a factor of the other.
There cannot be a greatest common factor of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
There are no common or greatest common factor(s) of just one number. In order to find the common or greatest common factor(s) you need two or more numbers.
There cannot be a common or greatest common factor of just one number. You need two or more numbers.
There cannot be a common or greatest common factor of just one number. You need two or more numbers.
There cannot be a greatest common factor (GCF) of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
No.
It is not possible to give a sensible answer to this question. The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question.If you meant 8 and 4, then the greatest common factor is 4.You need at least two numbers to find a GCF.