COMMON FACTORS & MULTIPLES

What is the Greatest Common Factor of 35 and 49

• 5

• 7

• 1

• 17

What is the LCM of 6 and 10?

• 30

• 60

• 50

• 40

List all the factors of 12

• 1, 2, 3, 4, 6, 12
• 1, 2, 4, 12
• 1, 12
• 1, 2, 3, 4, 5, 6, 12

LCM of 12 and 6

• 18

• 36

• 24

• 12

What is the Least Common Multiple of 4 and 14

• 28

• 42

• 56

• 24

What are the first 5 multiples of 16?

• 1, 2, 4, 8, 16

• 16, 32, 48, 64, 80

• 16, 22, 38, 44, 50

• 1, 2, 3, 4, 5

Sara had 16 red flowers and 24 yellow flowers.  She wants to make bouquets with the same number of each color flower in each bouquet.  What is the greatest number of bouquets that she can make?

• 4
• 2
• 48
• 8

What is the LCM of 2, 4, and 9?

• 18
• 36
• 27
• 40

There are 48 girls and 64 boys. 
The choir teacher plans to arrange the students in equal rows.
Only girls or boys will be in each row (no mixing of girls and boys in the same row). What is the greatest number of students that could be in each row?

• 8
• 6
• 16
• 12

Beginning at 8:30 a.m., tours of the National Capitol and the White House begin at a tour agency. Tours for the National Capitol leave every 15 minutes. Tours for the White House leave every 20 minutes. How often do the tours leave at the same time?

• Every 15 minutes

• Every 30 minutes

• Every 45 minutes

• Every 60 minutes