Factoring Worksheet

Factor the following numbers to their prime factors.

1 a.   7

 
1 b.   67

 
2 a.   28

 
2 b.   43

 
3 a.   82

 
3 b.   92

 
4 a.   23

 
4 b.   51

 
5 a.   6

 
5 b.   66

 
6 a.   57

 
6 b.   25

 
7 a.   41

 
7 b.   43

 
8 a.   88

 
8 b.   76

 
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Answer Key

1 c.  prime
1 c.  prime
2 c.  22 × 7
2 b.  prime
3 b.  2 × 41
3 b.  22 × 23
4 b.  prime
4 b.  3 × 17
5 b.  2 × 3
5 b.  2 × 3 × 11
6 c.  3 × 19
6 b.  52
7 a.  prime
7 a.  prime
8 a.  23 × 11
8 b.  22 × 19


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