Question

Find the least no. of 4 digit which is exactly divisible by 2 , 9 , 10​

Answer 1

Find lcm of
2|2,9,10
3|1,9,5
3|1,3,5
5|1,1,5
1|1,1,1
Lcm = 2*3*3*5=90
So answer is 90
Hope it will help u