WORKSHEET:MULTIPLES AND FACTORS  SOLUTION EXERCISE 5 

5)Find the HCF (Highest Common Factor) and the LCM (Lowest Common Multiple) of each pair of numbers: 
a) 10 and 16 10 = 2 x 5 HCF = 2 
b) 49 and 77 77 = 7 x 11 HCF = 7 
c) 200 and 300 

d) 450 and 600 
e) 72 and 270 
f) 22 and 121 22 = 2 x 11 HCF = 11 LCM = 121 x 2 = 242  
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