Cute number theory problem
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Newsgroups: sci.math.research
From: Larry Hammick <larryhamm...@telus.net>
Date: Tue, 27 Oct 2009 23:30:02 +0000 (GMT)
Local: Wed, Oct 28 2009 12:30 am
Subject: Cute number theory problem
Maybe I should have sent this one to the Monthly. Let p and q be positive relatively prime odd integers. Show that the triangle ( 0 , q/2 ) ( p/2, q/2 ) ( p/2, 0 ) has an even number of lattice points inside it. LH
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Newsgroups: sci.math.research
From: Gordon Stangler <gordon.stang...@gmail.com>
Date: Wed, 28 Oct 2009 12:30:02 +0000 (GMT)
Local: Wed, Oct 28 2009 1:30 pm
Subject: Re: Cute number theory problem
On Oct 27, 6:30 pm, Larry Hammick <larryhamm...@telus.net> wrote: > Maybe I should have sent this one to the Monthly. > Let p and q be positive relatively prime odd integers. Show that the > triangle > ( 0 , q/2 ) ( p/2, q/2 ) ( p/2, 0 ) > has an even number of lattice points inside it. > LH
Sorry Larry, I saw this problem four years ago, at least. I don't remember the solution, but it was solved, as well.
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Newsgroups: sci.math.research
From: Larry Hammick <larryhamm...@telus.net>
Date: Thu, 29 Oct 2009 06:30:01 +0000 (GMT)
Local: Thurs, Oct 29 2009 7:30 am
Subject: Re: Cute number theory problem
"Gordon Stangler" <gordon.stang ...@gmail.com> wrote in message news:hc9dga$rrv$1@crackerjack.ma.ic.ac.uk... > On Oct 27, 6:30 pm, Larry Hammick <larryhamm ...@telus.net> wrote: >> Maybe I should have sent this one to the Monthly. >> Let p and q be positive relatively prime odd integers. Show that the >> triangle >> ( 0 , q/2 ) ( p/2, q/2 ) ( p/2, 0 ) >> has an even number of lattice points inside it. >> LH > Sorry Larry, I saw this problem four years ago, at least. I don't > remember the solution, but it was solved, as well.
Damn. :D Anyhow, here's a solution this gem: http://www.mathlinks.ro/Forum/viewtopic.php?t=148026
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