Greatest Common Factor

The GCF stands for the _______ factor two numbers share in common

Tags

CCSS.4.OA.B.4

What is a set of factors for 24?

Tags

CCSS.4.OA.B.4

Give a set of factors for the number 40

What are the common factors of 24 and 40? {there are 3 of them}

The GCF of 24 and 40 is ____ (use the number don't spell it out)

Which way is easier for you?

• List the numbers then compare

• Create Factor Trees and multiply