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The College Mathematics Journal Volume 43, 2012 - Issue 5
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CLASSROOM CAPSULES

Geometry of sum-difference numbers

Paul YiuFlorida Atlantic University, Boca Raton, [email protected]
Pages 408-409 | Published online: 28 Nov 2017
 
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Summary

We relate the factorization of an integer N in two ways as N = xy = wz with x + y = w − z to the inscribed and escribed circles of a Pythagorean triangle.

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