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Omni-MATH / Let k≥2 be an integer. Find the smallest integer n≥k+1 with the property that there exists a set of n distinct real numbers such that each of its elements can be written as a sum o…

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problem

Let k≥2k\ge2 be an integer. Find the smallest integer n≥k+1n \ge k+1 with the property that there exists a set of nn distinct real numbers such that each of its elements can be written as a sum of kk other distinct elements of the set.
Plain-text mathematical notation (without MathML)
Let k≥2 be an integer. Find the smallest integer n≥k+1 with the property that there exists a set of n distinct real numbers such that each of its elements can be written as a sum of k other distinct elements of the set.
Original LaTeX notation
Let $k\ge2$ be an integer. Find the smallest integer $n \ge k+1$ with the property that there exists a set of $n$ distinct real numbers such that each of its elements can be written as a sum of $k$ other distinct elements of the set.

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