Factor them.
Numbers that have more than two factors are not prime numbers because prime numbers have only two factors.
Some even numbers have more factors than some odd numbers and some odd numbers have more factors than some even numbers. As a group, even numbers have more factors than odd numbers.
Some even numbers have more factors than some odd numbers and some odd numbers have more factors than some even numbers. As a group, even numbers have more factors than odd numbers.
Composite numbers are the numbers that have more than two factors.
There are countless numbers with more than 6 factors. 540, for example has 24 factors, and some numbers have even more.
All composite numbers have more than two factors.
It will have only two factors which are itself and one whereas composite numbers have more than two factors.
Prime numbers have two factors. Composite numbers have more than two.
Composite numbers have three or more factors.
Composite numbers have more than 2 factors.
Prime numbers have two factors; composite numbers have more than two factors. 1 and 0 are neither.
they help you know whick numbers are prime meaning its only factors are itself and one and which numbers have more factors than itself and 1.