Show that the product of two numbers 60 and.84 is equal to the product of their HCF and LCM
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Solution
Prime factorisation of 60=2×2×3×5 Prime factorisation of 84=2×2×3×7 Hence, LCM of 60,84=2×2×3×5×7=420 And HCF of 60,84=2×2×3=12 Now, LCM × HCF =420×12=5040 Also, 60×84=5040 i.e., HCF × LCM = Product of the two numbers