Question

Find the smallest number which is exactly divisible by all the numbers from 1 to 9

Answer 1

To find the smallest number we have to find the LCM (1, 2, 3, 4, 5, 6, 7, 8, 9)

LCM is 2 × 3 × 2 × 5 × 7 × 2 × 3 = 2520

The required number is 2520

2	1, 2, 3, 4, 5, 6, 7, 8, 9
3	1, 1, 3, 2, 5, 3, 7, 4, 9
2	1, 1, 1, 2, 5, 1, 7, 4, 3
5	1, 1, 1, 1, 5, 1, 7, 2, 3
7	1, 1, 1, 1, 1, 1, 7, 2, 3
2	1, 1, 1, 1, 1, 1, 1, 2, 3
3	1, 1, 1, 1, 1, 1, 1, 1, 3
	1, 1, 1, 1, 1, 1, 1, 1, 1