Factoring Worksheet

Factor the following numbers to their prime factors.

1 a.   12

 
 
 
 
 
 
1 b.   47

 
 
 
 
 
 
2 a.   60

 
 
 
 
 
 
2 b.   89

 
 
 
 
 
 
3 a.   30

 
 
 
 
 
 
3 b.   72

 
 
 
 
 
 
4 a.   39

 
 
 
 
 
 
4 b.   76

 
 
 
 
 
 
Page 2

Answer Key

1 c.  22 × 3
1 b.  prime
2 b.  22 × 3 × 5
2 c.  prime
3 c.  2 × 3 × 5
3 c.  23 × 32
4 b.  3 × 13
4 b.  22 × 19


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