有位台灣的叫Roger的年輕工程師，研究了數學組合， 只要買下特定的 117 組六合彩號碼，那麼無論開獎開出什麼號碼，這些奬券中都至少有一注會中獎。而 117
應該是目前已知最低的能夠保證中獎注數。
識國語的朋友可以參考他的YouTube Video有詳細介紹
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