Prime Factorizations

Create the factor tree for 40

Tags

CCSS.4.OA.B.4

Which number has a prime factorization of 2 x 5 x 7?

(a)  

What value would complete the prime factorization of 63?

(a)   x 3 x 7

Which is the prime factorization of 12? 

• 2 x 6

• 2 + 2 + 2 + 2 + 2 + 2 

• 2² x 3

• 1 x 2² x 3

Using a Factor Tree, find the prime factorization of 75.

• 5² x 3

• 3 x 5 x 7

• 3² x 5

• 15 x 5

Create a factor tree and find the prime factorization for 80

• 2⁴⋅5

• 4²⋅5

• 2⋅2⋅2

• 8⋅5⋅2

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

Write 144 in prime factorization. Use a factor tree. Show your work.

• 2² x 3⁴

• 2⁴ x 3²

• 2³ x 3³

• 2⁴ x 3³

Write 76 in prime factorization. Use a factor tree. Show your work.

• 2² x 19

• 2 x 19²

• 2 x 19

• 2² x 19²

Write 384 in prime factorization. Use a factor tree. Show your work.

• 2⁴ x 3

• 2⁶ x 3

• 2⁷ x 3

• 2⁵ x 3