Greatest Common Factor Lesson and Quiz

Greatest Common Factor

By Elizabeth Kee

Find the Factors of each of the numbers given

Step 1:

30: 2 x 3 x 5

18: 2 x 3 x 3 ​

2 and 3 are the factors in common​

Example:

Highlight or Circle all the factors the two numbers have in common.

Step 2:

Some text here about the topic of discussion

Multiply the common factors to find the Greatest Common Factor of GCT

30: 2 x 3 x 5

18: 2 x 3 x 3 ​

​

GCF: 2 x 3 = 6​

Example:

Step 3

Some text here about the topic of discussion

Fill in the Blanks

GCF of 10 and 50

Fill in the Blanks

GCF of 8 and 20

Fill in the Blanks

GCF of 45 and 60

Fill in the Blanks

GCF of 48 and 72

Fill in the Blanks

GCF of 28 and 70