Factoring Worksheet

Factor the following numbers to their prime factors.

1 a.   55

 
 
 
 
 
 
1 b.   30

 
 
 
 
 
 
2 a.   78

 
 
 
 
 
 
2 b.   9

 
 
 
 
 
 
3 a.   10

 
 
 
 
 
 
3 b.   59

 
 
 
 
 
 
4 a.   71

 
 
 
 
 
 
4 b.   99

 
 
 
 
 
 
Page 2

Answer Key

1 c.  5 × 11
1 b.  2 × 3 × 5
2 c.  2 × 3 × 13
2 c.  32
3 a.  2 × 5
3 b.  prime
4 b.  prime
4 b.  32 × 11


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