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The number 1 and any other number having exactly two factors (1 and itself) is not a composite number.
The number 1 is not a prime number. A prime number has exactly two factors, 1 and the number itself. 1 is the only number having exactly one factor.
A prime number has exactly two factors, 1 and the number itself. Any number having more factors than a prime is a composite number.
A number that has exactly two (positive) factors is called a prime number. For instance, the only factors of 7 are 1 and 7.
No, a prime number has exactly two factors: 1 and itself.