1 because 13 is a Prime number.
Chat with our AI personalities
The least common factor of any set of numbers is 1.
The least common factor of any set of numbers is 1.
The least common factor is 1. (The least common factor of any two or more positive integers is always 1.)
The least common factor of any set of integers is 1.
The least common factor of any set of integers is 1.