Factoring Worksheet

Factor the following numbers to their prime factors.

1 a.   31

 
 
 
 
 
 
1 b.   42

 
 
 
 
 
 
2 a.   60

 
 
 
 
 
 
2 b.   5

 
 
 
 
 
 
3 a.   50

 
 
 
 
 
 
3 b.   79

 
 
 
 
 
 
4 a.   57

 
 
 
 
 
 
4 b.   49

 
 
 
 
 
 
Page 2

Answer Key

1 c.  prime
1 c.  2 × 3 × 7
2 c.  22 × 3 × 5
2 c.  prime
3 c.  2 × 52
3 b.  prime
4 b.  3 × 19
4 b.  72


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