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MathNet 2007-part-02 — 187 problems (EN–VI) Question 12

Math Olympiad Vault · MathNet 2007-part-02 — 187 problems (EN–VI)

Question 12

Determine if there exists a positive integer pair $(m, n)$, such that
(i) the greatest common divisor of $m$ and $n$ is $1$, and $m \le 2007$,
(ii) for any $k = 1, 2, \dots, 2007$, $\lfloor \frac{nk}{m} \rfloor = \lfloor \sqrt{2}k \rfloor$.

(Here $\lfloor x \rfloor$ stands for the greatest integer less than or equal to $x$.)