Prime Factorization, LCM, GCF

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

• 6
• 12
• 22
• 8

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.EE.A.4

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
• 5 x 5 x 3
• 3² x 5
• 15 x 5

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.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

Create a factor tree and find the prime factorization for 80

• 2⁴⋅5

• 4²⋅5

• 2⋅2⋅2

• 8⋅5⋅2

Tags

CCSS.6.EE.A.1

What is the Prime Factorization of 144?

• 2⁴ x 3²

• 2² x 3⁴

• 2⁴ x 3⁴

• 2² x 3 x 3²

Tags

CCSS.6.EE.A.1

What is the LCM?

• The LCM is the least common factor that both numbers share the least. 
• The LCM is a multiple that both numbers share the most.  
• The LCM is a multiple that both numbers share the least. 
• The LCM is a factor that both numbers share the least. 

Tags

CCSS.6.NS.B.4

Find the Least Common Multiple of 9 and 6

• 18
• 36
• 38
• 72

Tags

CCSS.6.NS.B.4

Henry and Margo both began traveling around a circular track. Henry is riding his bike, and Margo is walking. It takes Henry 7 minutes to make it all the way around, and Margo takes 12 minutes. How much time will pass until they meet at the starting line?

• 84 minutes
• 48 minutes
• 854 minutes
• 78 minutes

Tags

CCSS.6.NS.B.4

What is the LCM of 3 and 9?

• 27

• 18

• 36

• 9

Tags

CCSS.6.NS.B.4