Factoring Worksheet

Factor the following numbers to their prime factors.

1 a.   64

 
 
 
 
 
 
1 b.   39

 
 
 
 
 
 
2 a.   48

 
 
 
 
 
 
2 b.   79

 
 
 
 
 
 
3 a.   65

 
 
 
 
 
 
3 b.   7

 
 
 
 
 
 
4 a.   53

 
 
 
 
 
 
4 b.   21

 
 
 
 
 
 
Page 2

Answer Key

1 c.  26
1 a.  3 × 13
2 b.  24 × 3
2 b.  prime
3 b.  5 × 13
3 b.  prime
4 b.  prime
4 b.  3 × 7


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