Question

two numbers which have no common factor other than 1 are called

Answer 1

Numbers, which do not have any common factor between them other than one, are called co-prime number. And 1 is a factor of all numbers, so it has 1 as a common factor.

Answer 2

Question:-

two numbers which have no common factor other than 1 are called

Answer:-

two numbers which have no common factor other than 1 are called co-prime numbers.