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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

Is 17 a prime number?

Back

Yes, 17 is a prime number because it can only be divided by 1 and 17.

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CCSS.4.OA.B.4

Front

Is 16 a prime number?

Back

No, 16 is not a prime number because it can be divided by 1, 2, 4, 8, and 16.

Tags

CCSS.4.OA.B.4

Front

Is 24 a prime number?

Back

No, 24 is not a prime number because it has multiple divisors: 1, 2, 3, 4, 6, 8, 12, and 24.

Tags

CCSS.4.OA.B.4

Front

Which of these is a prime number: 25 or 19?

Back

19 is a prime number; 25 is not because it can be divided by 1, 5, and 25.

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CCSS.4.OA.B.4

Front

Is 6 a prime number?

Back

No, 6 is not a prime number because it can be divided by 1, 2, 3, and 6.

Tags

CCSS.4.OA.B.4

Front

Is 3 a prime number?

Back

Yes, 3 is a prime number because it can only be divided by 1 and 3.

Tags

CCSS.4.OA.B.4

Front

Which of these is a prime number: 4 or 3?

Back

3 is a prime number; 4 is not because it can be divided by 1, 2, and 4.

Tags

CCSS.4.OA.B.4

Front

Is 5 a prime number?

Back

Yes, 5 is a prime number because it can only be divided by 1 and 5.

Tags

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