One of the most important question from real numbers as it was already asked in various important examinations in which we have given two numbers a and b and it is also given that both are relatively prime and it is asked to find the HCF of the given two numbers.

Kindly give me a detailed solution of this question

RS Aggarwal, Class 10, chapter 1E, question no 8

If a and b are two primes, then their HCF will be 1. HCF (a, b) = 1