Factoring Worksheet

Factor the following numbers to their prime factors.

1 a.   123

 
 
 
 
 
 
1 b.   117

 
 
 
 
 
 
2 a.   12

 
 
 
 
 
 
2 b.   46

 
 
 
 
 
 
3 a.   278

 
 
 
 
 
 
3 b.   430

 
 
 
 
 
 
4 a.   5

 
 
 
 
 
 
4 b.   379

 
 
 
 
 
 
Page 2

Answer Key

1 c.  3 × 41
1 b.  32 × 13
2 b.  22 × 3
2 b.  2 × 23
3 b.  2 × 139
3 b.  2 × 5 × 43
4 c.  prime
4 c.  prime


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