Exploring GCF and LCM Concepts

Which of the following is a factor of 12?

• 3

• 11

• 7

• 5

Tags

CCSS.4.OA.B.4

What is the greatest common factor (GCF) of 6 and 9?

• 1

• 2

• 3

• 6

Which of the following is a multiple of 6?

• 5

• 12

• 7

• 11

Tags

CCSS.4.OA.B.4

What is the least common multiple (LCM) of 6 and 9?

• 24

• 36

• 18

• 12

In the boot method, what is the first step to find the GCF of 9 and 14?

• Multiply the numbers

• Divide both numbers by 2

• List all factors

• Find a common factor

Using the boot method, what is the least common multiple (LCM) of 9 and 14?

• 63

• 72

• 126

• 144

What is the greatest common factor (GCF) of 4 and 12 using the boot method?

• 2

• 3

• 6

• 4

Using the boot method, what is the least common multiple (LCM) of 4 and 12?

• 8

• 12

• 16

• 24

What is the greatest common factor (GCF) of 4 and 10?

• 4

• 2

• 1

• 5

Using the boot method, what is the least common multiple (LCM) of 8 and 12?

• 16

• 24

• 32

• 36