A Prime number has only two factors which are itself and one whereas a composite number has more than two factors.
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9 is a composite number.
A composite can be the integer power of a prime number. So, 49 =7*7 is one example. 27=3*3*3 is another. A non power composite example is 15=3*5.
Any number that has more than 2 factors is a composite number
A composite number is made up of a product of prime numbers. It might be considered a non-prime number.
Well, a composite number is a composite number because it has more than two factors. For example, the number 2 is Prime because it ONLY has 2 factors, which is 2 and 1. Another example is that 30 is a Composite number because it has MORE than 2 factors which are 1, 30, 6, and 5.