Which number is a composite number?

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Prepare for CSET Multiple Subjects Subtest 2 in Math and Science. Study with flashcards and multiple choice questions, each question includes hints and explanations. Get ready for your exam!

Multiple Choice

Which number is a composite number?

Explanation:
A number is composite when it has more than two positive divisors. That means it can be divided evenly by numbers other than 1 and itself. The number 4 fits this idea because it can be divided by 1, 2, and 4, giving three divisors. It's not prime, since primes have exactly two divisors (1 and the number itself). The other numbers have only two divisors each (1 and the number itself), so they are prime. Therefore, the composite number here is 4.

A number is composite when it has more than two positive divisors. That means it can be divided evenly by numbers other than 1 and itself. The number 4 fits this idea because it can be divided by 1, 2, and 4, giving three divisors. It's not prime, since primes have exactly two divisors (1 and the number itself). The other numbers have only two divisors each (1 and the number itself), so they are prime. Therefore, the composite number here is 4.

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