Identify primes appearing in both factorisation lists. For each shared prime base, select the smaller of its two exponents, multiply these lowest powers together and report that final product as the GCD.
Class 9 Ganita Manjari Part 2 chapter 11 question answer
Class 9 Ganita Manjari Part 2 chapter 11 The World of Algorithms solutions
To compare two factorisations, find each common prime factor present in both lists. For every shared prime, compare its exponents in the two numbers and choose the minimum exponent. Multiplying each common prime raised to this minimum exponent gives their GCD. (Taking the maximum exponent across all primes appearing in either factorisation similarly gives their LCM.)
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