
Question 1 
Find the Greatest Common Factor of 15 and 25. 
A.  10  B.  5 
C.  15  D.  25 
 
  

Question 2 
Find the Greatest Common Factor of 21, 56 and 63. 
A.  14  B.  3 
C.  7  D.  9 
 
  

Question 3 
Find the Greatest Common Factor of 16, 32 and 60. 
A.  8  B.  16 
C.  6  D.  4 
 
  

Question 4 
Find the Greatest Common Factor of 18, 27 and 90. 
A.  9  B.  10 
C.  18  D.  6 
 
  

Question 5 
Find the Greatest Common Factor of 39 and 65. 
A.  9  B.  12 
C.  13  D.  16 
 
  


Question 6 
Two numbers has a greatest common factor equal to 6 and a least common multiple equal to 36. If one of the numbers is 12, find the other number.

A.  24  B.  15 
C.  18  D.  45 
 
  

Question 7 
Find the Greatest Common factor of 42, 63 and 105.

A.  21  B.  7 
C.  14  D.  9 
 
  

Question 8 
Jerry has 42 apples, 56 pears and 98 oranges. He wants to pack each type of fruit in separate boxes with maximum number of fruits in each box. He also wants equal number of fruits in each basket with no fruit left. How many fruits will there be in each box?

A.  28  B.  14 
C.  36  D.  22 
 
  

Question 9 
Which set of numbers will have a Greatest Common factor equal to 16? 
A.  48, 96, 145  B.  24, 40, 64 
C.  50, 560, 140  D.  48, 80, 112 
 
  

Question 10 
Find the Greatest Common factor of 36, 54, and 126. 
A.  12  B.  18 
C.  27  D.  9 
 
  
