PRIME AND COMPOSITE NUMBERS

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What is a prime number?

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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

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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 41 a prime number or a composite number?

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41 is a prime number.

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CCSS.4.OA.B.4

Front

Is 9 a prime number or a composite number?

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9 is a composite number.

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CCSS.4.OA.B.4

Front

Is 17 a prime number or a composite number?

Back

17 is a prime number.

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CCSS.4.OA.B.4

Front

Is 86 a prime number or a composite number?

Back

86 is a composite number.

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CCSS.4.OA.B.4

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Is 33 a prime number or a composite number?

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33 is a composite number.

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CCSS.4.OA.B.4

Front

List the first five prime numbers.

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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.

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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