suskom wrote:Not sure if I am missing something here but why couldn't the value of n be 12?
If that is the case, the greatest common factor of n (12) and 210 COULD be 3.
\When x and y are 2 integers, their GCD h is defined when
x/h = Integer and y/h = Integer.
The GCD of 12 and 210, as you say can be 3.
Indeed, 12/3 = 4 and 210/3 = 70. However, GCD stands for "GREATEST" common factor. What if I could find another integer, greater than 3, which still divides into 12 and 210 evenly?
The GCD of 12 and 210 is actually 6.