SOLUTION: I need to find a counterexample to the statement 4^n+1 is divisible by 5. Can someone please show me how to do this. Thanks

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Question 169224: I need to find a counterexample to the statement 4^n+1 is divisible by 5. Can someone please show me how to do this.
Thanks

Answer by Edwin McCravy(20056)   (Show Source): You can put this solution on YOUR website!
I need to find a counterexample to the statement
is divisible by . Can someone please show me how to do this.

Start with .



No. that's not it, because  is divisible by .

So try 



There your counterexample.  is not divisible by .

Edwin

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