prime factorization

Select all of the prime numbers.

• 1

• 2

• 7

• 18

• 21

What is the prime factorization of 25?

• 2 x 2 x 2

• 3 x 3 x 3

• 5 x 5

Tags

CCSS.4.OA.B.4

Use a number tree to find the prime factorization of 42

• 4 x 4 x 3

• 7 x 3 x 2

Which list contains all prime numbers?

• 2, 3, 5, 7, 11

• 2, 3, 5, 7, 9

Use a number tree to find the prime factorization of 60

• 5x3x2x2

• 7x6x5

• 5x3x3x2

• 7x5x4

Use a number tree to find the prime factorization of 72

• 2x2x2x3x3

• 4x3x3x2

• 4x2x2x2x2

Simplify

• 1/5

• 1/3

• 3/5

• 2/3

Tags

CCSS.6.NS.A.1

Simplify 

• 1/4

• 1/3

• 1/2

• 1/8

Tags

CCSS.6.NS.A.1

Simplify 

• 1/4

• 1/24

• 6/4

• 1/18

Tags

CCSS.6.EE.A.3

CCSS.6.EE.A.4

CCSS.6.NS.A.1

Write 28 as a product of its prime factors.

• 2 x 2 x 7

• 4 x 7