HCF of two numbers is 1 and LCM is 221. If one of the two numbers is 17, find the other.
13
39
200
17
Let the unknown number be x. Second number is 17. Now, HCF × LCM = product of the two numbers ⇒ 1×221=17×b ⇒ b = 13 ∴ The unknown number is 13.
If the HCF and LCM of two numbers are 13 and 1989 respectively and one of the number is 221, determine the other number.
Two numbers are in the ratio 17:13.If their HCF is 15, find the numbers.