回複:關於素數的題目求助
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jinjing
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2010-03-31 14:23:16
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If p,q are different prime numbers,no one is 2,the difference is even number,it is not 0,so greater than 1.If p=2,q>3,q-p can't be 1.
大於3的素數都是2n+1is easier.