Prime Factorization Review

Find the prime number.

• 10
• 9
• 7
• 4

Tags

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

Tags

CCSS.4.OA.B.4

One is

• prime

• composite

• not prime or composite

• the loneliest number

Tags

CCSS.4.OA.B.4

Which is a factor of 36?

• 72
• 5
• 4
• 17

Tags

CCSS.4.OA.B.4

Find ALL FACTORS of 24

• 1, 2, 12, 24

• 1, 2, 8, 24

• 1, 2, 3, 4, 5, 6, 8, 12, 24

• 1, 2, 3, 4, 6, 8, 12, 24

Tags

CCSS.4.OA.B.4

1,2,8 and 16 are all factors of 16. Which factor is missing

• 3
• 4
• 5
• 6

Tags

CCSS.4.OA.B.4

Find the prime factorization of 27

• 3 x 3 x 3
• 3 x 9
• 1 x 27

What is the prime factorization of 80?

• 2 x 40
• 1 x 80
• 2 x 2 x 2 x 5
• 2 x 2 x 2 x 2 x 5

Use a factor tree to find the prime factorization of 42

• 4x4x3

• 6x7

• 7x3x2

• 5x4x2

Use a factor tree to find the prime factorization of 64

• 4x4x4

• 4x4x2x2

• 2x2x2x2x2x2

• 4x4x2x1