Factor Trees

Use a factor tree to find prime factorization of 24.

• 2 x 3 x 2 x 3

• 2 x 3 x 2 x 2

• 6 x 2 x 2

• 2 x 3 x 4

Tags

CCSS.4.OA.B.4

Which of the following numbers is prime?

• 15

• 18

• 19

• 21

Which of the following is NOT prime?

• 11

• 13

• 19

• 21

What is the prime factorization of 15?

• 3x3x3
• 2x2x5
• 15
• 3x5

Tags

CCSS.4.OA.B.4

Find the prime number

• 10
• 9
• 7
• 4

Tags

CCSS.4.OA.B.4

What is the missing factor?

• 1

• 2

• 5

• 8

Tags

CCSS.4.OA.B.4

What is the missing factor?

• 3

• 5

• 6

• 7

Tags

CCSS.4.OA.B.4

Find the prime number.

• 10
• 9
• 7
• 4

What is the prime factorization of 15?

• 3x3x3
• 2x2x5
• 15
• 3x5

Which number is NOT a factor of 10?

• 1
• 2
• 3
• 5

Tags

CCSS.4.OA.B.4