TEKS.MATH.5.4A

Which is a prime number?

• 15
• 17
• 21
• 39

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TEKS.MATH.5.4A

Is 100 a prime or composite number?

• Prime
• Composite

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TEKS.MATH.5.4A

All of these are prime except

• 33
• 19
• 2
• 73

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TEKS.MATH.5.4A

Which number is NOT prime?

• 3
• 7
• 17
• 21

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TEKS.MATH.5.4A

Which number is the only even prime number?

• 0
• 2
• 1
• 3

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TEKS.MATH.5.4A

65

• Is a perfect square.
• Is not a perfect square.

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TEKS.MATH.5.4A

All of these are prime except

• 3
• 9
• 2
• 13

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TEKS.MATH.5.4A

How is a prime number different from a composite number?

• Prime numbers are smaller than composite numbers.
• Composite numbers are larger than prime numbers.
• All odd numbers are prime numbers.
• Prime numbers have only 2 factors, and composite numbers have more than 2 factors.

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TEKS.MATH.5.4A

The number 1 is....

• ....a prime number.

• ....a composite number.

• ....not a prime or composite number.

• ....can be both prime and composite.

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TEKS.MATH.5.4A

Which of the following is an even prime number?

• 32

• 22

• 12

• 2

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TEKS.MATH.5.4A