2. Find the common factors of :
(a) 4, 8 and 12      (b) 5, 15 and 25

Answers (1)

(a) 4,8,12

 Factors of 4=1,2,4 

Factors of 8=1,2,4,8 

Factors of 12=1,2,3,4,6,12

 Common factors =1,2,4 

 

(b) 5,15, and 25 

Factors of 5=1,5 

Factors of 15=1,3,5,15 

Factors of 25=1,5,25 

Common factors =1,5

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