Factor graph

Check this out. It's a pattern that I discovered about six years ago but this fellow has found out much more about it than I did. Here is another fellow who independently discovered the same pattern and whose picture of it I am using here. When I was first looking into it I could not find any references to it any where, considering that it is hard to Google something that you don't know the name of. I called it the factor graph, the first fellow I linked to called it the divisor plot, these are both perfectly logical names but Google is not smart enough to know that they are the same thing ^_^ .