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1992 IMO Problems/Problem 1

Revision as of 14:30, 6 October 2023 by Tomasdiaz (talk | contribs) (→‎Problem)

Problem

Find all integers $a$, $b$, $c$ satisfying $1 < a < b < c$ such that $(a - 1)(b -1)(c - 1)$ is a divisor of $abc - 1$.

Solution

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