Question

How do I find the greatest common factor for (3x, 6) ?

Answer 1

6

Answer 2

3 if x is odd, 6 if x is even

Answer 3

You need to find the biggest number that will divide into both.
3x is divisible by 3 & x
6 is divisible by 2&3
Then the maximum factor is 3 (or your GCF is 3)

Answer 4

it is 3 if x is odd, but if x is even it can be written as 2n for some integer n. 3*2n=6n, so 6 is the GCF. Depends on the parity of x.

Answer 5

x is a placeholder :D We treat it as such, not as a number :D

Answer 6

ok, then it is 3 if x is just an object :)