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Prime & Composite

Prime:  Prime numbers have exactly 2 factors; 1 & itself

Composite: Composite numbers have more than 2 factors.

Zero and One are NEITHER prime NOR composite!!

3

1 X 3

The only factors of 3 are 1 & 3 so 3 is a prime number.

10

1 X 10

2 X 5

The factors are 5 are 1, 2, 5 & 10.  There are more than 2 factors, so 10 is a composite number.

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