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What is the HCF of 2 coprime numbers?
The highest common factor of any set of numbers is the largest possible number which divides the given numbers exactly without any remainder.
Answer: HCF of 2 coprime numbers is 1.
Let us explore more about co-primes.
If the highest common factor (HCF) or GCF of two numbers is also defined as the largest among all the common factors of given numbers. For co-primes, 1 is the only common factor. So, the HCF of coprime numbers is always 1.
For example: (2,3), (3,5), (8,15), (10,33) etc.
Therefore, the HCF of 2 coprime numbers is 1.