Factoring Worksheet

Factor the following numbers to their prime factors.

1 a.   74

 
 
 
 
 
 
1 b.   26

 
 
 
 
 
 
2 a.   67

 
 
 
 
 
 
2 b.   21

 
 
 
 
 
 
3 a.   45

 
 
 
 
 
 
3 b.   51

 
 
 
 
 
 
4 a.   90

 
 
 
 
 
 
4 b.   72

 
 
 
 
 
 
Page 2

Answer Key

1 c.  2 × 37
1 b.  2 × 13
2 b.  prime
2 b.  3 × 7
3 b.  32 × 5
3 b.  3 × 17
4 b.  2 × 32 × 5
4 c.  23 × 32


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