Prime and Composite Review

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

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CCSS.4.OA.B.4

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that has more than two positive divisors.

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CCSS.4.OA.B.4

Front

Is the number 1 a prime or composite number?

Back

Neither. The number 1 is neither prime nor composite.

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CCSS.4.OA.B.4

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

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CCSS.4.OA.B.4

Front

What is the largest two-digit prime number?

Back

The largest two-digit prime number is 97.

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CCSS.4.OA.B.4

Front

List three prime numbers.

Back

2, 3, 5.

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CCSS.4.OA.B.4

Front

List three composite numbers.

Back

4, 6, 8.

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Front

Is 0 a prime or composite number?

Back

Neither. The number 0 is not considered prime or composite.

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CCSS.4.OA.B.4

Front

What is the prime factorization of 12?

Back

The prime factorization of 12 is 2 x 2 x 3.

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CCSS.4.OA.B.4

Front

Are all even numbers composite?

Back

No, the only even prime number is 2.

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CCSS.4.OA.B.4