To prove whether a number is composite, factor it. A number having any factor besides 1 and itself is composite.
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It is composite. It ends in a 6, which is an even number, and the only even prime is 2. You can prove it to be composite by simply dividing it by two.216/2=108
It is a composite number.
It is a composite number.
It is a composite number.
It is a composite number.