Question

determine the least number of 5 digit that is exactly divisible by 16,18,24,and 30.

Answer 1

In this question, we will take LCM of 16,18,24 and 40 first . That will be 720.
Now, we know least number of 5 digit = 10000.
Then
Divide 10000 by 720 i.e. 10000/720 ,which will give you a remainder of 640.
That means , if you will 720-640 i.e. 80 to the dividend ,it will be completely divided.
So, Required no. = 10000+80 = 10080.