Correct option is D
Given:
7, 14, 28, 35, 42
Solution:
LCM of given numbers;
7 | 7, 14, 28, 35, 42 |
2 | 1, 2, 4, 5, 6 |
2 | 1, 1, 2, 5, 3 |
5 | 1, 1, 1, 5, 3 |
3 | 1, 1, 1, 1, 3 |
1, 1, 1, 1, 1 |
LCM =
The smallest number that is exactly divisible by 7, 14, 28, 35, 42 is 420.
Thus, Option D is correct.