Revision as of 17:17, 2 February 2009 by Johns121 (Talk | contribs)

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U(20)=(1,3,7,9,11,13,17,19). ord(20)=8 ord(3)=ord(17)=ord(7)=ord(13)=4,ord(19)=ord(9)=ord(11)=2 So since no element has order 8, no element can generate U(20).\ --Johns121 22:17, 2 February 2009 (UTC)

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