Prime and Composite Numbers

Which number is prime?

• 57
• 19
• 9

Tags

CCSS.4.OA.B.4

Which number is composite?

• 2
• 4
• 13

Tags

CCSS.4.OA.B.4

Prime numbers have:

• Exactly 2 factors
• 2 pairs of factors
• More than 2 factors
• 1 factor

Tags

CCSS.4.OA.B.4

Composite numbers:

• Are always bigger than prime numbers
• Have more than 2 factors
• Have 2 pairs of factors
• Don't have factors

Tags

CCSS.4.OA.B.4

Find the prime number

• 10
• 9
• 7
• 4

Tags

CCSS.4.OA.B.4

Which number is composite?

• 11

• 13

• 21

• 23

Tags

CCSS.4.OA.B.4

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.

Tags

CCSS.4.OA.B.4

Are all even numbers composite numbers?

• Yes
• No

Tags

CCSS.4.OA.B.4

Are there any numbers that are neither prime nor composite?

• Yes
• No

Tags

CCSS.4.OA.B.4

Which one is a prime number?

• 465
• 822
• 600
• 743

Tags

CCSS.4.OA.B.4