Prime Factorization

Find the prime factorization of 75 in exponential form.

• 3 × 5²

• 3² × 5

• 5 × 15

• 3² × 5²

Which is the prime factorization of 12 ? 

• 2 x 6

• 2 + 2 + 2 + 2 + 2 + 2 

• 2² x 3

• 1 x 2² x 3

Use a factor tree to find the prime factorization of 72

• 2³ x 3²

• 2 x 3² x 4

• 2⁴ x 3³
  

• 2² x 6²
  

What are the missing factors?

• 2 and 3

• 3 and 6

• 3 and 3

• 1 and 9

Tags

CCSS.4.OA.C.5

Use a factor tree to find the prime factorisation of 168

The prime factors of 70 are?

• 3 x 5 x 7

• 5 x 7 x 7

• 2 x 5 x 7

Which is the prime factorization of 12? 

• 2 x 6

• 2 + 2 + 2 + 2 + 2 + 2 

• 2 x 2 x 3

• 1 x 2 x 2 x 3

What are the prime factors of 30? 

• 3, 2, 5 

• 1, 2, 3, 5, 6, 15, 30

• 3, 30

• 10, 3

What is the prime factorization of 16? 

• 1 x 16

• 2 x 2 x 4

• 2 x 2 x 2 x 2

• 8 + 8

Use a number tree to find the prime factorization of 48

• 4x2x6

• 4x2x2x3

• 3x2x2x2x2

• 12x4

Tags

CCSS.4.OA.B.4