Which of the following is a prime number?

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Prepare for the Praxis Middle School Mathematics Exam with quizzes. Study with flashcards and multiple choice questions. Each question provides hints and detailed explanations. Ensure success on your test!

Multiple Choice

Which of the following is a prime number?

Explanation:
A prime number is a natural number greater than 1 that has exactly two distinct positive divisors: 1 and the number itself. The number that fits this property here is the one that is greater than 1 and can only be divided evenly by 1 and itself. That’s 11. The other options don’t fit: 1 isn’t greater than 1, so it isn’t prime. 0 isn’t greater than 1 and has many divisors, so it isn’t prime. 9 can be divided by 1, 3, and 9, so it has more than two divisors and isn’t prime. Thus, 11 is the prime number.

A prime number is a natural number greater than 1 that has exactly two distinct positive divisors: 1 and the number itself. The number that fits this property here is the one that is greater than 1 and can only be divided evenly by 1 and itself. That’s 11.

The other options don’t fit: 1 isn’t greater than 1, so it isn’t prime. 0 isn’t greater than 1 and has many divisors, so it isn’t prime. 9 can be divided by 1, 3, and 9, so it has more than two divisors and isn’t prime. Thus, 11 is the prime number.

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