prime factorization

2 x 2 x 2  or 2³ is the prime factorization of

• 6
• 12
• 22
• 8

Tags

CCSS.6.EE.A.1

What number is never allowed in a factor tree? 

• 13 (it's bad luck!)
• 1 
• 8675309
• 2

Tags

CCSS.6.EE.A.1

Which is the prime factorization of 12? 

• 2 x 6
• 2 + 2 + 2 + 2 + 2 + 2 
• 2² x 3
• 1 x 2² x 3

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.EE.A.4

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

• 5² x 3
• 5 x 5 x 3
• 3² x 5
• 15 x 5

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.EE.A.4

Use a number tree to find the prime factorization of 48

• 4x2x6
• 4x2²x3
• 3x2⁴
• 12x4

Tags

CCSS.4.OA.B.4

If the expanded form is 2⋅2⋅2⋅3⋅3⋅5⋅7 what would the exponential form be?

• 2⋅3⋅5⋅7
• 2³⋅3²⋅5⋅7
• 2²⋅3²⋅5⋅7
• 8⋅9⋅35

Tags

CCSS.6.EE.A.1

Write 144 in prime factorization. You can use the ladder or factor tree. Show your work.

• 2² x 3⁴
• 2⁴ x 3²
• 2³ x 3³
• 2⁴ x 3³

Tags

CCSS.6.EE.A.1

Use a number tree to find the prime factorization of 18

• 3x2x2
• 3x3x3
• 33x3
• 3x3x2

Tags

CCSS.4.OA.B.4

Use a number tree to find the prime factorization of 64

• 4x4x4
• 4x4x2x2
• 2x2x2x2x2x2
• 4x4x2x1

Tags

CCSS.6.EE.A.1

Use a number tree to find the prime factorization of 42

• 4x4x3
• 6x7
• 7x3x2
• 5x4x2