Which number has exactly two factors, 1 and itself?

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Multiple Choice

Which number has exactly two factors, 1 and itself?

Explanation:
A number with exactly two factors, 1 and itself, is a prime number. This means it can’t be evenly divided by any other positive integers besides 1 and the number itself. For example, 2, 3, 5, and 7 all have exactly two factors. The number 1 isn’t prime because it has only one factor (itself). Numbers with more than two factors, like 4 (1, 2, 4) or 6 (1, 2, 3, 6), are composite. So the property described points to prime numbers.

A number with exactly two factors, 1 and itself, is a prime number. This means it can’t be evenly divided by any other positive integers besides 1 and the number itself. For example, 2, 3, 5, and 7 all have exactly two factors. The number 1 isn’t prime because it has only one factor (itself). Numbers with more than two factors, like 4 (1, 2, 4) or 6 (1, 2, 3, 6), are composite. So the property described points to prime numbers.

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