Factors
Multiples
Greatest Common Factor
Least Common Multiple
Random
100

List all of the factors of 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 is the LCM of 15 and 25

75

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

List all of the factors of 18

1 x 18
2 x 9
3 x 6

300

List all of the factors of 42.

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

300
List all the common multiples of 6 and 8 that are less than 50.
24 and 48
300
What is the greatest factor of 16 and 36?
4
300
What is the least common multiple of 2, 3, and 5?
30
300
What is the GCF of 12 and 36

6

400

List all of the factors of 52.

1 x 52
2 x 26
4 x 13

400
List 4 multiples of 7 greater than 10 but less than 50.
14, 21, 28, 35, 42, 49
400

What is the great common factor of 50, 35, and 15?

5

400
What is the least common multiple of 20 and 12?
60
400
List 3 common multiples of 4 and 6

12, 24, 36, 48...

500
List all of the common factors of 24 and 36.
1, 2, 3, 4, 6, 12
500
List all the common multiples of 12 and 18 that are less than 75.
36 and 72
500
What is the greatest common factor of 64 and 80?
16
500

What is the least common multiple of 15 and 18?

90

500

What is the GCF of 16 and 40

8

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