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Omni-MATH / Let A=a₁,a₂,…,a₇ be a set of distinct positive integers such that the mean of the elements of any nonempty subset of A is an integer. Find the smallest possible value of the sum … · Discussion

Discussing Let A={a₁,a₂,…,a₇} be a set of distinct positive integers such that the mean of the elements of any nonempty subset of A is an integer. Find the smallest possible value of the sum … · Omni-MATH

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