Prime Numbers

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 1 a prime number?

Back

No, 1 is neither prime nor composite because it has only one factor.

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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

Is 2 a prime number?

Back

Yes, 2 is a prime number because it has only two factors: 1 and 2.

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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

Which of the following is a prime number: 4, 5, 6?

Back

5 is a prime number.

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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

Front

Is 35 a prime number?

Back

No, 35 is a composite number because it has factors other than 1 and itself (1, 5, 7, 35).

Tags

CCSS.4.OA.B.4

Front

Which one of the following is not a prime number: 11, 13, 15?

Back

15 is not a prime number because it has factors (1, 3, 5, 15).

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CCSS.4.OA.B.4