Name: 
 

Lesson 4 - Identifying Factors by Dividing



 1. 

What factors are missing in this repeated division?

     mc001-1.jpg
a.
A = 42, B = 21
c.
A = 21, B = 7
b.
A = 21, B = 3
d.
A = 3, B = 7
 

 2. 

What factors are missing from this repeated division?

       mc002-1.jpg
a.
A = 2, B = 14, C = 7
b.
A = 2, B = 2, C = 7
c.
A = 14, B = 7, C = 1
d.
A = 2, B = 7, C = 1
 

 3. 

What factors are missing from this factor tree?
      mc003-1.jpg
   
a.
A = 3, B = 5
b.
  A = 25, B = 3
c.
A = 5, B = 5
 

 4. 

What factors are missing from this factor tree?

        mc004-1.jpg
a.
A = 48, B = 3, C = 9, D = 3
c.
A = 54, B = 3, C = 12, D = 9
b.
A = 27, B = 4, C = 3, D = 9
d.
A = 54, B = 2, C = 9, D = 3
 

 5. 

Which number has the prime factors 2, 3, and 7?
a.
70
b.
54
c.
168
d.
210
 

 6. 

Which number has the prime factors 3, 5, and 11?
a.
220
b.
396
c.
594
d.
825
 
 
Match the number with the prime factors.
a.
2
c.
2, 41
b.
2, 3
d.
2, 3, 5
 

 7. 

82
 

 8. 

64
 

 9. 

150
 

 10. 

72
 



 
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