Q.

The LCM of the smallest prime number and the smallest odd composite number is:

1 10  
2 6  
3 9  
4 18  

Ans.

(4)

We have, the smallest prime number = 2

and the smallest odd composite number = 9

∴ LCM of the smallest prime number and the smallest odd composite number

= LCM (2, 9) = 18