Answer:
here
72, 54, 27 are divisible by 3, to check divisibility by 3 we have to add the digits.
dividing all three digits by 3 we get :
3 x 24 = 72
3 x 18 = 54
3 x 9 = 27
now we have 24, 18, 9
check divisibility by 2, but no, it is not possible. 2 is not divisible by 5 so we take 3, yes three is divisible
24, 18, 9
3 x 8 = 24
3 x 6 = 18
3 x 3 = 9
so now we have 8,6,3
this is neither divisible by 2 or 3 so now we multiply 3 x 3
= 9
second answer is 4
