GCF AND LCM Review

The smallest positive number that is a multiple of two or more numbers.

• Greatest Common Factor

• Least Common Multiple

The highest number that divides exactly into two or more numbers.

• Greatest Common Factor

• Least Common Multiple

Using the Listing Method

What is the GCF OF 12 AND 18?

• 3

• 12

• 6

What is the GCF of 16 and 24?

• 8

• 2

• 4

Using the Prime Factorization Method

What is the GCF of 27 and 36?

• 3

• 9

• 6

Using the Continuous Division

What is the GCF OF 24 and 18?

• 6

• 3

• 2

Find the GCF of of 12 and 40 using Euclidean Algorithm.

The last divisor, which is________?

• 3

• 4

• 2

Find the GCF of 10, 25 and 30 using any method.

• 3

• 2

• 5

Using the Listing method

What is the LCM of 8 and 12?

• 24

• 4

• 2

Find the LCM of 10 and 25?

• 25

• 50

• 12