Very interesting.  Here is a nice explanation of the algorithm:<p><a href="http:&#x2F;&#x2F;mathlesstraveled.com&#x2F;2012&#x2F;10&#x2F;05&#x2F;factorization-diagrams&#x2F;" rel="nofollow">http:&#x2F;&#x2F;mathlesstraveled.com&#x2F;2012&#x2F;10&#x2F;05&#x2F;factorization-diagram...</a><p>(from the &quot;About&quot; page)