A Prime number is a number with two and only two factors: 1 (also known as unity) and itself. A composite number is a number with more than two factors; in other words, it has at least one factor besides 1 and itself. 556 has factors other than 1 and itself, so it is not a prime number. For example, it is divisible by 2 because it is an even number. Therefore, 556 a composite number.
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The number is not COMPOSITE. Instead, it is a prime number.
Composite (the only even number that is prime is2).
Composite
It is 1 that is neither a prime or a composite number The number 1 is neither prime nor composite.
There is not such a thing as a composite prime number. A prime number has exactly two factors. A composite number has more than two factors.