AT HOME LEARNER: GCF and LCM

GCF of 27 and 70

• 3
• 5
• 7
• 10

What is the least common multiple (LCM) of 4 and 10?

• 4
• 40
• 15
• 20

Which is the GCF of 4 and 12?

• 2

• 4

• 12

Which pair of numbers has a GCF of 6?

• 3 and 18

• 6 and 12

• 12 and 24

Which pair of numbers has a LCM of 20?

• 4 and 5

• 2 and 10

• 5 and 10

Which pair of numbers has a GCF of 10 AND a LCM of 60?

• 2 and 5

• 20 and 30

• 5 and 10

• 15 and 20

Find the Greatest  Common Factor (GCF) of 14 & 22.

• 1
• 2
• 7
• 14

Find the Greatest Common Factor (GCF) OF 32 and 64.

• 1
• 2
• 4
• 32

Find the Greatest Common Factor (GCF) OF 12,  18 & 30

• 1
• 3
• 6
• 12

Find the Least Common Multiple of 9 and 6

• 18
• 36
• 38
• 72