Number theory · Least common multiple · Powers of two · Consecutive integers · Prime exponents

Problem 4, 2020

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RegionalProof

A collection of \(2020\) consecutive positive integers is split into two subsets of \(1010\) numbers each. Can the least common multiple of all the numbers in the first subset be equal to the least common multiple of all the numbers in the second subset?

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Serbian Regional Competition (Okruzno takmicenje) 2020, high school grade I, category A, problem 4. Organized by the Mathematical Society of Serbia (DMS). Source