Primes and Composites

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 2 a prime number?

Back

Yes, 2 is a prime number because it can only be divided by 1 and 2.

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CCSS.4.OA.B.4

Front

Is 4 a prime number?

Back

No, 4 is a composite number because it can be divided by 1, 2, and 4.

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CCSS.4.OA.B.4

Front

List the first five prime numbers.

Back

The first five prime numbers are 2, 3, 5, 7, and 11.

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CCSS.4.OA.B.4

Front

List the first five composite numbers.

Back

The first five composite numbers are 4, 6, 8, 9, and 10.

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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 single-digit prime number?

Back

The largest single-digit prime number is 7.

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CCSS.4.OA.B.4

Front

Can a prime number be even?

Back

Yes, the only even prime number is 2.

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CCSS.4.OA.B.4

Front

What is the difference between prime and composite numbers?

Back

Prime numbers have exactly two distinct positive divisors, while composite numbers have more than two.

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CCSS.4.OA.B.4