Question

Given HCF(42,a)=6 , LCM(42,a)=504.find a

Answer 1

Answer:

          a = 72

Step-by-step explanation:

In general, the product of HCF and LCM is equal to the product of the two original numbers.  That is:

• HCF(a, b) × LCM(a, b)  =  ab

For the given question, this gives:

    42a  =  HCF(42, a) × LCM(42, a)

⇒  42a  =  6 × 504

⇒  7a  =  504

⇒  a  =  72

Answer 2

Step-by-step explanation:

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