Find the Common factors and HCF of the following number. Numbers Factors Common Factors HCF 16 18

Let us find the Factors, common factors and HCF of 16 , 18 . To find the common factors we must find the factors first, Factors of 16 are 1 , 2 , 4 , 8 , 16 Factors of 18 are 1 , 2 , 3 , 6 , 9 , 18 Common factors of 16 and 18 are 1 , 2 HCF 16 , 18 = 2 Let us list it in table. Thus, the Common factors of 16 , 18 are 1 , 2 and HCF is 2 .

Find the Common factors and HCF of the following number. Numbers Factors Common Factors HCF 9 15

Let us find the Factors, common factors and HCF of 9 , 15 . To find the common factors we must find the factors first, Factors of 9 are 1 , 3 , 9 . Factors of 15 are 1 , 3 , 5 , 15 . Common factors of ( 9 , 15 ) are 1 , 3 . HCF 9 , 15 is 3 Thus, the Common factors are 1 , 3 and HCF 9 , 15 is 3 .

Find the Common factors and HCF of the following number. Numbers Factors Common Factors HCF 14 21

Let us find the Factors, common factors and HCF of 14 , 21 . To find the common factors we must find the factors first, Factors of 14 are 1 , 2 , 7 , 14 Factors of 21 are 1 , 3 , 7 , 21 Common factors of 14 , 21 are 1 , 7 HCF 14 , 21 is 7 Numbers Factors Common Factors HCF 14 1 , 2 , 7 , 14 1 , 7 7 21 1 , 3 , 7 , 21 Thus, the Common factors of 14 , 21 are 1 , 7 and HCF is 7 .