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prime number
No, a prime number has exactly two factors: 1 and itself.
A prime number has exactly two factors, 1 and the number itself.
Any prime number has exactly two factors, 1 and the number itself.
A prime number is a positive integer that has exactly two different factors: 1 and itself. This is why 1 is not a prime number: it has the factors 1 and itself, but they are the same - it does not have exactly two different factors.