コラッツ予想とは… 全ての自然数は偶数の場合2で割り奇数の場合は3でかけた後1を足すを繰り返すと必ず1に収束するというものであり未だに正しいかどうか証明されていない物である。ちなみに計算が面倒だったから機械にやらせようと言う魂胆では決してない(汗)
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