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設這個長方形的長是a,寬是b,則, 2(a+b)=36 a+b=18 因為a,b都是質數 有: a=5,b=13 或者a=7,b=11 或者a,b互換. 這樣它的面積是ab=5*13=65 或者ab=7*11=77 而77>65 所以它的面積最多可以是77個組織.
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