Factoring Worksheet

Factor the following numbers to their prime factors.

1 a.   60

 
1 b.   12

 
2 a.   100

 
2 b.   72

 
3 a.   33

 
3 b.   23

 
4 a.   40

 
4 b.   71

 
5 a.   76

 
5 b.   22

 
6 a.   80

 
6 b.   75

 
7 a.   12

 
7 b.   60

 
8 a.   26

 
8 b.   29

 
Page 2

Answer Key

1 c.  22 × 3 × 5
1 c.  22 × 3
2 b.  22 × 52
2 b.  23 × 32
3 b.  3 × 11
3 b.  prime
4 b.  23 × 5
4 b.  prime
5 b.  22 × 19
5 b.  2 × 11
6 b.  24 × 5
6 b.  3 × 52
7 b.  22 × 3
7 b.  22 × 3 × 5
8 c.  2 × 13
8 b.  prime


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