if and , then

I believe this is true but not sure on how to prove it. I tried Bezout's identity, but I couldn't see what to do next or it just didn't go anywhere.

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- June 21st 2011, 04:46 PM #1

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- June 22nd 2011, 03:15 AM #2

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## Re: if (a,n)=1 and (b,n)=1, then (ab,n)=1