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Hi,


I am doing theses questions and have got stuck.

I have completed questions 1 through

5. However questions 6 onwards I dont know what to do.

Please can you help me with it, and provide explanations so I can understand it?


Thank you


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Top Answer

6) we have k=7 and z=8, k.j=1 (mod8) so 7j = 1 (mod8) then 7j-1 = 0 (mod8), for what j , 7j-1 is divisible... View the full answer

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