為什麼一個整數(大於六)在兩個質數之間,可總是分為六? (5,6,7; 11,12,13; 17,18,19; 29,30,31 etc)
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Why an integer, that is greater than six and is between two prime numbers, can be always divided by six? (5,6,7; 11,12,13; 17,18,19; 29,30,31; etc)
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