RJHS 6.NS.4 LCM and GCF Test 2

What is the least common multiple (LCM) of 6 and 8?

• 6

• 12

• 8

• 24

What is the least common multiple of 3 and 9?

(a)  

What is the greatest common factor (GCF) of 24 and 36?

• 4

• 2

• 8

• 12

What is the greatest common factor (GCF) of 15 and 40?

(a)  

Lisa found the prime factors of 49. Choose all of the ways she could have correctly listed the prime factors.

• 7 x 4 x 9

• 7 x 7

• 5 x 9 x 1 

Which expression uses the GCF and the distributive property to represent the sum of 24 + 32?

• 2(12+32)

• 4(6+8)

• 6(4+5)

• 8(3 + 4)

Samantha has 42 cherry bars and 30 peach bars that she wants to put into bags. Each bag will have only one flavor of fruit bar. Samantha wants to put the same number of fruit bars in each bag.

What is the greatest number of fruit bars she will put in each bag?

(a)  

Samantha has 42 cherry bars and 30 peach bars that she wants to put into bags. Each bag will have only one flavor of fruit bar. Samantha wants to put the same number of fruit bars in each bag.

Using the GCF to distribute the sum of 42 + 30, how many bags of each flavor would she have?

• 7 bags of cherry and 5 of peach

• 5 bags of cherry and 7 of peach

• 3 bags of cherry and 7 of peach

• 12 bags of cherry and 8 of peach