Prime factorization and LCM

Multiple Choice

What is the least common multiple of 6 and 9?

• 3

• 18

• 36

• 54

Multiple Choice

LCM(6, 7) =

• 84

• 21

• 13

• 42

Multiple Choice

 Find the Least Common Multiple (LCM) of 12 & 30

• 30
• 36
• 60
• 90

Multiple Choice

Find the Least Common Multiple (LCM) of 12 & 18

• 36
• 48
• 60
• 72

Multiple Choice

Is 5 prime or composite? 

• Prime
• Composite

Multiple Choice

What does LCM mean?

• Greatest Common Multiple

• Least Common Multiple

• Least Common Factor

• Least Common Mayonnaise

Multiple Choice

Find the LCM of 18 and 24

• 6
• 72
• 24
• 5

Multiple Choice

LCM (18, 15)

• 90
• 18
• 15
• 3

Multiple Choice

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. 

Multiple Choice

Milo has listed the first 4 multiples of 7 as:

7 14 22 28

Which one is incorrect?

• 7

• 14

• 22

• 28

Poll

Rate your understanding of the lesson target. Lesson target: Find the least common multiple of two numbers.

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