Which of the following is a composite 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 composite number?

Explanation:
Composite numbers are those that can be written as a product of two integers greater than 1, meaning they have more than two positive divisors. Examining the numbers: 4 equals 2 times 2, so its divisors are 1, 2, and 4 — more than two, which makes it composite. 9 equals 3 times 3, with divisors 1, 3, and 9 — also composite. The other two numbers are primes because they have only two divisors: 1 and themselves. So there are two composite numbers in the list.

Composite numbers are those that can be written as a product of two integers greater than 1, meaning they have more than two positive divisors.

Examining the numbers: 4 equals 2 times 2, so its divisors are 1, 2, and 4 — more than two, which makes it composite. 9 equals 3 times 3, with divisors 1, 3, and 9 — also composite. The other two numbers are primes because they have only two divisors: 1 and themselves.

So there are two composite numbers in the list.

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