The greatest common factor is used to reduce fractions.
The greatest common factor of 6 and 9 is 3.
Just use the GCF(greatest common factor
To reduce fractions
When simplifying fractions.
Yes, they do.
A Baker uses greatest common factor to figure out how many pastries that they want to make.
The greatest common factor is a function of two numbers-- it is the greatest factor that the numbers have in common. The concept does not apply to a single number. Now you can use the same number twice and ask what is the greatest common factor of 240 and 240 and the answer would be 240.
It doesn't matter what you use, you still need at least two numbers to find a GCF. If that's 3 and 6, the GCF is 3.
It won't help. The lowest common factor of any two positive integers is 1.