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- Feb 14, 2012

- 3,894

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Find all integer solutions of the equation $\left\lfloor \dfrac{x}{1!} \right\rfloor+\left\lfloor \dfrac{x}{2!} \right\rfloor+\cdots+\left\lfloor \dfrac{x}{10!} \right\rfloor=1001$.

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