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MathNet 2017-part-02 — 176 problems (EN–VI) Question 90

Math Olympiad Vault · MathNet 2017-part-02 — 176 problems (EN–VI)

Question 90

Does there exist a positive integer $n$ which has exactly 9 positive divisors and whose all divisors can be placed in a 3-by-3 table such that the products of the 3 numbers in each row, each column and on each diagonal are all the same?