What are the prime and composite numbers?
Prime numbers are those numbers which have only two factors 1 and the number itself.
For example, these numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, etc which have only two factors i.e. 1 and the number itself.
Composite numbers are those numbers which have more than two factors.
For example, 4 is a composite number and it can be divided by 1, 2 and 4.
6 is a composite number and it can be divided by 1, 2, 3 and 6.
8 is a composite number and it can be divided by 1, 2, 4 and 8.
9 is a composite number and it can be divided by 1, 3 and 9.
Therefore, 1 is a unique number that is neither prime nor composite as it has only one factor.
5th Grade Math Problems
From Prime and Composite Numbers to HOME PAGE
Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.

New! Comments
Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.