Factorization Review

What are the missing prime factors?

• 2 and 3

• 3 and 6

• 3 and 3

• 1 and 9

What is the missing prime factor?

• 3

• 5

• 6

• 7

What prime factors do these numbers (18 and 27) have in common?

• 2

• 2 and 3

• 3 and 3

• 3

Tags

CCSS.4.OA.B.4

Create a factor tree and find the prime factorization for 80

• 2⁴⋅5

• 4²⋅5

• 2⋅2⋅2

• 8⋅5⋅2

What number has the prime factorization of 2³ • 3² • 5?

• 360

• 720

• 180

• 240

What are all of the factors of 12?

• 1 and 12

• 1, 2, 3, 4, & 6

• 1, 2, 3, 4, 6, & 12

• 1, 2, 3, 4, 6, 10, & 12

• 12, 24, 36, 48, 72 , 84...

Tags

CCSS.4.OA.B.4

What is the GCF of 18 and 24?

• 3

• 6

• 8

• 9

Which pair of numbers has a GCF of 8?

• 8, 36

• 40, 80

• 16, 56

• 24, 42

What is the greatest factor of 28 and 49?

• 1

• 2

• 7

• 12

Only 1 answer below could be correct for the prime factorization of a number. Which answer could be correct. 

• 4⋅2⋅5

• 2⋅3²⋅7

• 15²⋅7

• 7²⋅4²