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注:2^24表示2的24次方,下同,則有: 2^24-1 =(2^12+1)(2^12-1) =(2^12+1)(2^6+1)(2^6-1) =(2^12+1)(2^6+1)(2^3+1)(2^3-1) =(2^12+1)(2^6+1)x9x7 所以可得這兩個整數為7和9.
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