A composite number is a positive integer that has a positive divisor other than one or itself. In other words a composite number is any positive integer greater than one that is not a prime number.
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Not all composite numbers are even, but all even numbers except 2 are composite.
The number of composite numbers is infinite.
The standard form is p/q where p and q are integers and q > 0.
Composite numbers have more than 2 factors.
Three composite numbers are 1 3 6