Factors
Multiples
Greatest Common Factor
Least Common Multiple
Equivalent Equations
100

List all of the factors of 32.

1, 2, 4, 8, 16, and 32

1 x 32

2 x 16

4 x 8

100
List 3 multiples of 8 that are less than 50.
8, 16, 24, 32, 40, 48
100
What is the greatest common factor of 12 and 15
3
100
What is the least common multiple of 3 and 7?
21
100

What number of the following makes the equation true? 

23 + 7 = 35 - ___

5

200

List all of the common factors of 12 and 20.

1, 2, and 4

200
List 3 common multiples of 2 and 6.
6, 12, 18, 24, 30, 36, 42, 48, etc.
200
What is the greatest common factor of 24 and 20?
4
200
What is the least common multiple of 4 and 9?
36
200

What is the not equal symbol?

≠
300
List all of the factors of 52.
1, 2, 4, 13, 26, and 52
300
List 4 multiples of 7 greater than 10 but less than 50.
14, 21, 28, 35, 42, 49
300
What is the great common factor of 50, 35, and 15?
5
300

What is the least common multiple of 6 and 10?

60

300

Which of the following makes the equation NOT true?

7 x 5 ≠ ____ + 17

A. 9

B. 18

C. 10

D. 35

B.

400
List all of the common factors of 24 and 36.
1, 2, 3, 4, 6, 12
400
List all the common multiples of 12 and 18 that are less than 75.
36 and 72
400
What is the greatest common factor of 64 and 80?
16
400

What is the least common multiple of 8 and 12?

24

400

Solve the following equation:

32 ÷ 8 = _____ - 8

12

500

List all of the factors of 42.

1, 2, 3, 6, 7, 14, 21, 42

500
List all the common multiples of 6 and 8 that are less than 50.
24 and 48
500
What is the greatest factor of 16 and 36?
4
500
What is the least common multiple of 2, 3, and 5?
30
500

Which of the following is NOT true?

A. 5 x 3 = 7 + 8 

B. 4 x 4 = 36 - 20

C. 6 x 5 = 12 + 8

D. 24 ÷ 8 = 3 + 0

C
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