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Math K-Plus

How To Find Composite Numbers

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What Are Composite Numbers


A Natural Number is called a Composite Number if it is not a Prime Number.

Composite Numbers starts at Number One and continue to forever; here is an example, 1 to 20: 1, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, ... infinity. Notices numbers 2, 3, 5, 7, 11, 13, 17, 19 ... are not shown above because they are Prime Numbers. To see what numbers between 1 and 1000 are composite numbers, use he composite number calculator.



Example Composite Numbers
1, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, ... ∞.




Please read! To use this calculator is easy. Enter any number 1 to 1000, and the calculator will determine if it is a composite number.

Composite Number Calculator
Enter The Number Here Then Press The SUBMIT Button