Factors, Prime and Composite

Which of the following is a factor of 12? Select all that apply.

• 12

• 2

• 24

• 3

Tags

CCSS.4.OA.B.4

Select all of the prime numbers.

• 3

• 9

• 29

• 2

Tags

CCSS.4.OA.B.4

Select all of the composite numbers.

• 12

• 16

• 3

• 7

Tags

CCSS.4.OA.B.4

What are the factors of 15?

• 1, 2, 3, 5, 15

• 1, 3, 5, 15

• 1, 2, 3, 4, 5

• 1, 5, 10, 15

Tags

CCSS.4.OA.B.4

What are the factors of 24?

• 1, 2, 3, 4, 5, 6, 7, 8, 24

• 1, 3, 4, 6, 8, 10, 24

• 1, 2, 3, 4, 6, 8, 12, 24

• 1, 2, 4, 8, 12, 24

Tags

CCSS.4.OA.B.4

Which one of the numbers below is prime numbers?

• 15

• 17

• 16

• 12

Tags

CCSS.4.OA.B.4

Which number is neither a prime nor a composite number ?

• 1

• 3

• 5

• 7

Tags

CCSS.4.OA.B.4

A prime number is...

• a number that has only one factor.
• a number that has at least two factors.
• a number that has more than two factors.
• a number that has only two factors.
  (1 and itself)

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

Which number is prime?

• 25
• 11
• 36
• 14

Tags

CCSS.4.OA.B.4