Question

The HCF of any two prime number is​

Answer 1

Answer:

1 is co-prime with every number. Any two prime numbers are co-prime to each other: As every prime number has only two factors 1 and the number itself, the only common factor of two prime numbers will be 1. For example, 2 and 3 are two prime numbers.

Answer 2

Answer:

There is no common prime factor between two co-prime numbers. So, only common factor is 1 and it is the highest. Hence, HCF of two co-prime numbers is 1.