Prime Vs. Composite

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 number?

Back

No, 1 is not a prime number.

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CCSS.4.OA.B.4

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

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CCSS.4.OA.B.4

Front

List the first five composite numbers.

Back

4, 6, 8, 9, 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 smallest composite number?

Back

The smallest composite number is 4.

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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

Can a composite number be odd?

Back

Yes, for example, 9 and 15 are odd composite numbers.

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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