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Factors
Multiples
Greatest Common Factor
Least Common Multiple
Prime Factorization
100

List all of the factors of 32.

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

100

List the first three multiples of 8. 

8, 16, 24

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 prime factorization of 12? 

2 x 2 x 3

200
List all of the common factors of 12 and 20.
1, 2, and 4
200

List the first 3 common multiples of 2 and 6. 

6, 12, 18

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 prime factorization of 56? 

2 x 2 x 2 x 7

300
List all of the factors of 42.
1, 2, 3, 6, 7, 14, 21, 42
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 prime factorization of 85? 

5 x 17

400
List all of the factors of 52.
1, 2, 4, 13, 26, and 52
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

What is the prime factorization of 120? 

2 x 2 x 2 x 3 x 5

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 21 and 24?
168
500

What is the prime factorization of 1,015? 

5 x 7 x 29