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MATH / What is the smallest positive integer n such that, out of the n unit fractions (1)/(k) where 1≤k≤n, exactly half of the fractions give a terminating decimal? · Discussion

Discussing What is the smallest positive integer n such that, out of the n unit fractions (1)/(k) where 1≤k≤n, exactly half of the fractions give a terminating decimal? · MATH

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