Hello Bhumika,
If a and b are two co prime numbers, then there LCM is a*b, because they share no common prime factors to account for in the LCM calculation.
Question : The LCM of two numbers is five times their HCF. If the product of the two numbers is 20480, then find their HCF and LCM, respectively.
Option 1: 46 and 230
Option 2: 48 and 240
Option 3: 64 and 320
Option 4: 56 and 280
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