In recreational mathematics, arithmetic billiards provide a geometrical method to determine the least common multiple (LCM) and the greatest common divisor (GCD) of two natural numbers. It makes use of reflections inside a rectangle that has sides with length of the two given numbers.
In recreational mathematics, arithmetic billiards provide a geometrical method to determine the least common multiple (LCM) and the greatest common divisor (GCD) of two natural numbers. It makes use of reflections inside a rectangle that has sides with length of the two given numbers.
Source: Wikipedia "Arithmetic billiards" · CC BY-SA 4.0
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