Answer:
Multiples of 3 are 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36.
Multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36
Multiples of 6 6, 12, 18 , 24 , 30, 36 , 42 , 48, 54, 60
but the first two common multiples of 3, 4, and 6 are
3: 6, 9
4 : 8,12
6 : 12, 18