LCM/GCF- Dupuie

LCM is short for

• lowest common multiple

• least common multiplication

• least common multiple

• least counting multiple

What is the least common multiple of 7 and 2?

• 21

• 14

• 7

• 28

What is the least common multiple of 7, 2, and 6?

• 42

• 14

• 48

• 32

What is the greatest common factor of 20 and 27?

• 3

• 4

• 9

• 1

To find common factors or greatest common factors you draw a ___________.

• chart

• table

• rainbow

• line

What is the GCF of 21 and 36?

• 7

• 3

• 21

• 14

What is the LCM of 8 and 10?

• 16

• 80

• 40

• 24

What is the greatest common factor of 50 and 75?

• 50

• 75

• 25

• 150

What is the GCF of 6, 30, and 15?

• 3

• 6

• 60

• 30

Which list of multiples contains only multiples of 10 and 15?

• 10, 20, 30, 40

• 30, 60, 90, 120

• 10, 15, 20, 25, 30

• 1, 2, 3 ,5