Factoring Worksheet

Factor the following numbers to their prime factors.

1 a.   45

 
 
 
 
 
 
1 b.   70

 
 
 
 
 
 
2 a.   53

 
 
 
 
 
 
2 b.   24

 
 
 
 
 
 
3 a.   71

 
 
 
 
 
 
3 b.   53

 
 
 
 
 
 
4 a.   78

 
 
 
 
 
 
4 b.   58

 
 
 
 
 
 
Page 2

Answer Key

1 c.  32 × 5
1 b.  2 × 5 × 7
2 c.  prime
2 c.  23 × 3
3 b.  prime
3 b.  prime
4 b.  2 × 3 × 13
4 c.  2 × 29


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