Composite numbers
What is a composite number?
Section titled “What is a composite number?”A composite number is any number which has more than two factors.
Examples of composite numbers
Section titled “Examples of composite numbers”(factors: , , ) (factors: , , , ) (factors: , , ) (factors: , , , ) (factors: , , , , , , , , )
Non-examples of composite numbers
Section titled “Non-examples of composite numbers”(factors: , ) - only two factors, so it is prime (factors: , ) - only two factors, so it is prime (factors: , ) - only two factors, so it is prime (factors: , ) - only two factors, so it is prime (factors: , ) - only two factors, so it is prime (factors: ) - only one factor, so it is neither prime nor composite
You may think that all non-composite numbers are prime numbers, and you’d be right… usually.
The number
It is also not prime, because prime numbers have exactly 2 factors.