2019 · Q13
HCF of two numbers is 12. Which one of the following can never be their LCM?
Elementary MathematicsHCF and LCM
- A80
- B60
- C36
- D24
Explanation
The LCM of two numbers is always a multiple of their HCF. With HCF 12, the LCM must be divisible by 12. Of the options, 60, 36 and 24 are multiples of 12, but 80 is not, so 80 can never be the LCM.