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Puzzle of the Week #559 - Minimal Combinations

March 13, 2026 Elliott Line

I have 2k items and I select k of them. There are N possible combinations that I could have selected. N is a multiple of 1000. What is the smallest k could be?

← Puzzle of the Week #560 - Concentric CirclesPuzzle of the Week #558 - Isosceles Trapezoid →
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