Lcm and hcf

If the LCM of a and 18 is 36 and the HCF of a and 18 is 2, then a = …

Correct answer:

a =  36

Step-by-step explanation:

LCM(a,18)=36 hcf(a,18)=2 18=2×3×3=2×32 36=2×2×3×3=22×32  a=36   Verifying Solution:  36=2232 18=232 LCM(36,18)=2232=36  l=LCM(a,18)=LCM(36,18)=36 36=2232 18=232 GCD(36,18)=232=18  h=GCD(a,18)=GCD(36,18)=18



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