Math 4 Quiz 3 Oct 28 Friday

Multiple Choice

Complete the factor tree to find the prime factorization of 9.

• 9 = 3 x 3

• 9 = 9 x 1

• 9 = 9 x 9

Multiple Choice

Find the prime factorization of 30.

• 30 = 5 x 6

• 30 = 2 x 3 x 5

• 30 = 2 x 3 x 6

Multiple Choice

• 42 = 2 x 3 x 7

• 42 = 2 x 3 x 6

• 42 = 2 x 3 x 5

Multiple Choice

Find the prime factorization of 16.

• 16 = 2 x 4 x 4

• 16 = 4 x 4

• 16 = 2 x 2 x 2 x 2

Multiple Choice

What is the GCF of 8 and 16?

• 4

• 8

• 16

• 1

Multiple Choice

What is the GCF of 10 and 40?

• 5

• 20

• 10

• 0

Multiple Choice

What is the GCF of 5 and 15?

• 1

• 5

• 15

• 3

Multiple Choice

What is the GCF of 18 and 12?

• 18

• 12

• 4

• 6

Multiple Choice

What is the GCF of 18 and 27?

• 9

• 3

• 18

• 6

Multiple Choice

What is the LCM (Least Common Multiple) of 4 and 10?

• 4

• 40

• 15

• 20

Multiple Choice

What is the GCF (Greatest Common Factor) of 12 and 6?

• 1

• 6

• 2

• 3

Multiple Choice

What is the LCM (Least Common Multiple) of 4 and 10?

• 4

• 40

• 15

• 20

Multiple Choice

What is the GCF (Greatest Common Factor) of 12 and 6?

• 1

• 6

• 2

• 3

Multiple Choice

GCF of: 
14 and 20

• 7
• 28
• 2
• 6

Multiple Choice

Find the LCM of 18 and 24

• 6
• 72
• 24
• 5

Multiple Choice

What is the least common multiple (LCM) of 8 and 5?

• 50
• 40
• 5
• 8

Multiple Choice

GCF 24 and 36

• 8
• 6
• 12
• 4

Multiple Choice

Bill cut out 6 squares and 8 circles. He divided the cutouts into groups so that the same number of squares and circles were in each group. What is the greatest number of groups he could have made?

• 2

• 3

• 4

Multiple Choice

What is the LCM of 10 and 5?

• 5

• 10

• 15

• 50