Question

If the HCF of two numbers is one of the numbers, then their LCM is the other number True or false? Why?

Answer 1

It's true because,
we take 6 and 12 for LCM and HCF

HCF                                            
factors of 6=2×3                   
factors of 12= 2×2×3                                  
common factors =2×3=6                             

LCM
 common multiples would be  2×2×3
LCM= 12