A prime number is a counting number greater than 1 whose only factors are 1 and itself. A composite number is a counting number that is not prime.
Can 1 be a factor of a number?
The factors of a number include the number, itself, and 1. ... Prime numbers have two factors, themselves and 1, but those are the trivial factors that every number has. Because they cannot be factored in any other way, we say that they cannot be factored.
hope it helped.
