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, or GCF.
GCF, or Greatest Common Factor.
The greatest common factor of two or more prime numbers is 1.
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.
The GCF or greatest common factor.
The greatest common factor, or GCF.
There is no Greatest Common Factor (GCF) for a single number. The Greatest Common Factor is the largest factor common to two or more numbers.
That's the greatest common factor, or GCF.
At least two or more numbers are needed for the greatest common factor of them
That's known as the greatest common factor, or GCF.
Two or more numbers are needed to find their greatest common factor.