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Re:小菜证明In Reply To:Re:小菜证明 Posted by:Heng_Xing at 2011-08-05 20:03:02 题目只是说3是7的一个原根，但是7不止只有3一个原根，5也是7的一个原根，所以7的原根的个数是2=phi(6)。题目要求的是原根的个数，而不是谁是原根。 Followed by: Post your reply here: |
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