Factoring Worksheet

Factor the following numbers to their prime factors.

1 a.   29

 
1 b.   43

 
2 a.   66

 
2 b.   22

 
3 a.   91

 
3 b.   84

 
4 a.   45

 
4 b.   98

 
5 a.   19

 
5 b.   28

 
6 a.   42

 
6 b.   17

 
7 a.   29

 
7 b.   25

 
8 a.   61

 
8 b.   46

 
Page 2

Answer Key

1 c.  prime
1 c.  prime
2 c.  2 × 3 × 11
2 c.  2 × 11
3 b.  7 × 13
3 b.  22 × 3 × 7
4 c.  32 × 5
4 b.  2 × 72
5 b.  prime
5 b.  22 × 7
6 b.  2 × 3 × 7
6 c.  prime
7 c.  prime
7 c.  52
8 a.  prime
8 a.  2 × 23


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