prime and composite numbers

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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CCSS.4.OA.B.4

Are all even numbers composite numbers?

• Yes
• No

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CCSS.4.OA.B.4

Are there any numbers that are neither prime nor composite?

• Yes
• No

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CCSS.4.OA.B.4

Which one is a composite number?

• 37
• 41
• 21
• 29

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CCSS.4.OA.B.4

What makes a number a composite number?

• It only has 2 factors 1 and itself.
• It is an even number.
  It is an odd number.
• Is is an odd number.
• It has more than two factors.

Tags

CCSS.4.OA.B.4

the only factors prime numbers have are:

• 0 and 1
• 0 and itself
• 1 and itself
• 1

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CCSS.4.OA.B.4

Which list has only prime numbers?

• 2, 3, 4, 5
• 1, 5, 7, 9
• 2, 3, 5, 7
• 2, 4, 6, 8

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CCSS.4.OA.B.4

True or False: Two is the only even prime number.

• True
• False

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CCSS.4.OA.B.4

One is

• Prime

• Composite

• Neither

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CCSS.4.OA.B.4

Which is a prime number?

• 15
• 17
• 21
• 39

Tags

CCSS.4.OA.B.4