Assuming I understand your question, the answer is not necessarily. For example, the factors of 24 are 2, 3, 4, 6, 8, 12, but the only factor of 25 is 5.
That would be called a "common factor" of the two (or more) numbers.
That's a common factor.
A number with more than one factor is normal, since all numbers except 0 and 1 have more than one factor. A number with more than two factors is composite.
A common Factor
a common factor
A number that is a factor of two or more numbers is simply a common factor
A whole number that is a factor of two or more numbers is a common factor.
a common factor
That would be called a "common factor" of the two (or more) numbers.
A common factor.
common factor
That's a common factor.
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.
A number with more than one factor is normal, since all numbers except 0 and 1 have more than one factor. A number with more than two factors is composite.
That's a common factor.
a common factor
A common Factor