Question

hcf of two numbers is 3 and their lcm is 21 if one number is 7 the other number is​

Answer 1

Answer:

The other number is 9

Explanation:

Let the number be x

HCF * LCM = Product of numbers

⇒ 3 * 21 = 7 * x

⇒ x = 3 * 3 = 9