Example: Find the G.C.D. of 36 and 48, If multiply these numbers with 5 then find the G.C.D. of that numbers.

Solution: The G.C.D of 36 and 48 is 12. The numbers are multiplied with 5 that is, 5*36 and 5*48, Therefore, the G.C.D. of these numbers is 5 * 12 =60