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Answer:

689 is not a Prime number. It is a composite number.

Definition:

A prime number has exactly two factors: 1 (also known as unity) and itself. A composite number has more than two factors; in other words, it has at least one factor besides 1 and itself.

Explanation:

689 is also divisible by 13 and 53, so it is a composite number.

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Q: Is 689 a prime number or a composite number?
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