Factors
Multiples
Greatest Common Factor
Least Common Multiple
Integers
1

List all of the prime numbers of 32.

2, 2, 2, 2, 2

1
List 3 multiples of 8 that are less than 50.
8, 16, 24, 32, 40, 48
1
What is the greatest common factor of 12 and 15
3
1
What is the least common multiple of 3 and 7?
21
1

What is the opposite of the opposite of 9?

9
2

List all of the prime numbers of 20.

5, 2, 2

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

17 degrees below zero

-17

3

List all of the prime numbers of 40.

5, 2, 2, 2

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

Deposit $50

$50

4

List all of the prime numbers of 100

5, 2, 5, 2,

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

What is the great common factor of 50 + 15?

5(10 + 3)

4
What is the least common multiple of 20 and 12?
60
4

Put in order from Least to Greatest:

-8, -16, -2, -5, -4

-16, -8, -5, -4, -2

5

List all of the prime numbers of 24 and 36.

2, 2, 2, 2, 2, 3, 3, 3

5
List all the common multiples of 12 and 18 that are less than 75.
36 and 72
5

What is the greatest common factor of 25 + 100?

25(1 + 4)

5

What is the least common multiple of 20 and 30?

60

5

Evaluate using an inequality.


|-36| _____ |-72|

|-36| _____ |-72|

= 36 < 72

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