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Curated by: Mathematical Visual Proofs (650 videos)
An intriguing pattern emerges from a thousand lockers and a thousand people toggling locker doors: All lockers begin closed. Pass 1: change the condition of every locker (open them) Pass 2: change the condition every 2nd locker (close them) Pass 3: change the condition every 3rd locker (open are closed and closed are opened) ... Pass m: change the condition of every mth locker (open are closed and closed are opened) Continue to pass 1000. Only some lockers are left open: which ones? #mathvisualproofs #math #visualmath #numbertheory #mathematics #puzzle #lockerproblem