prime numbers

what do you make of the fact that prime numbers show patterns when displayed along a number spiral?

>>12
You got it backward. You start with a lot of regular lines and holes, but they get less regular as you proceed. That's why the Ulam spiral looks the most regular near the center, and gets more chaotic as you move out.
Here's a big one Xarn did: http://cairnarvon.rotahall.org/pics/ulamspiral.png