18 is divisible by both 2 and 3 .It is also divisible by 2 xx 3 = 6.Similarly, a number is divisible by both 4 and 6.Can we say tyhat number must also be divisible by 4 xx 6 = 24?If not,give one example to justify yur answer.

You have seen that a number 450 is divisible by 10 .It is also divisible by 2 and 5 which are factors of 10.Similarly,a number 135 is divisible by 9.It is also divisible by 3 which is a factor of 9. Can you say that if a number is divisible by any number m,then it will also be divisible by each of the factors of m?