Question

42 and 60 hcf by prime fractorisation mathod​

Answer 1

$42 = 2 \times 3 \times 7$

$60 = 2 \times 2 \times 3 \times 5$

$\sf{HCF} = \: 2 \times 3$

$\sf{HCF} = 6$

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Answer 2

Answer:

 2|42 , 60

 3|21 , 30

    |7 , 10

HCF=2*3

       =6