Which of the following defines a prime number?

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Multiple Choice

Which of the following defines a prime number?

Explanation:
Prime numbers are positive integers greater than 1 that have exactly two distinct factors: 1 and the number itself. This means the only divisors are 1 and the number, with no other numbers dividing evenly. For example, 2 and 3 are prime because their only factors are 1 and themselves. In contrast, 4 isn’t prime because it has three factors: 1, 2, and 4; it’s divisible by 2 as well. The number 1 isn’t prime because it has only one factor. This distinction helps separate prime numbers from composites, which have more than two factors.

Prime numbers are positive integers greater than 1 that have exactly two distinct factors: 1 and the number itself. This means the only divisors are 1 and the number, with no other numbers dividing evenly. For example, 2 and 3 are prime because their only factors are 1 and themselves. In contrast, 4 isn’t prime because it has three factors: 1, 2, and 4; it’s divisible by 2 as well. The number 1 isn’t prime because it has only one factor. This distinction helps separate prime numbers from composites, which have more than two factors.

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