Question

The hcf of two numbers is13 and their LCM is 1989 one number is 221 find the other number
explain it

Answer 1

Answer:

$lcm(a \: b) \times hcf(a \: b) = a \times b \\ b = \frac{lcm(a \: b) \times hcf(a \: b)}{a} \\ = \frac{1989 \times 13}{221} \\ = 117 \\ \\ \: hope \: it \: helps \: u$