Composite and Prime Numbers

Examples, solutions, videos, stories and songs to help Grade 4 students learn about composite numbers.

Related Topics:
More Lessons for Grade 4
Math Worksheets
Prime Number Worksheets

Share this page to Google Classroom

Prime and Composite Numbers
Prime numbers are numbers with exactly 2 factors.
Which of the following numbers are prime numbers?

Prime Numbers and Composite Numbers
A Prime Number can be divided evenly only by 1 or itself.
And it must be a whole number greater than 1.

Prime and Composite Numbers 1 to 100 - What are they?
Prime number: has exactly 2 factors: 1 and itself.
Composite numbers: has more than 2 factors.
The number 1 is neither a prime nor a composite number.
The prime numbers from 1 to 100 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
Mathway Calculator Widget

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.