Question

find the least four digit number which is exactly divisible by 8 10 and 12​

Answer 1

120

120L.C.M of 8, 10, 12 = 2 x 2 x 2 x 3 x 5 = 120. Since 120 is divisible by 8, 10 and 12, 1200 is also divisible by all these numbers. Therefore, 1200 is the smallest four digit number divisible by 8, 10 and 12.