Correct Answer - Option 3 : 105

**Given: **

HCF is 21 and the product of two numbers is 2205

**Concept: **

HCF × LCM = Product of two numbers

**Calculation: **

Let the LCM of that numbers is 'y'

Now,

⇒ 21 × y = 2205

⇒ y = 2205/21

⇒ y = 105

**∴ The required LCM is 105.**