The number 5 is a prime because prime can be divided evenly by 1, or itself. And it must be a whole number greater than 1.
Here is an example:
5 can only be divided evenly by 1 or 5, so it is a prime number. But 6 can be divided evenly by 1, 2, 3, and 6 so it is NOT a prime number (it is a composite number).
So 5 is a prime number.
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