Question

Find the smallest number that is completely divisible by 28 and 42.

Answer 1

We know that the least number which is divisible by 28 and 42 is their L.C.M.

2	28,	42
7	14,	21
	2,	3

L.C.M. of 28 and 42 = 2 × 2 × 3 × 7 = 84