[MikeyC]

Originally Posted by Tripp

The numbers were explained in the ARG after Season 3(I think) to some degree.

The numbers are the variables to the Valenzetti Equation, which predicts the end of the human race(they think). Sometime before the Dharma Initiative arrived on the Island, it was discovered that the numbers each represent a human or environmental variable in the equation. At some point, the Hanso Foundation, and Dharma Initiative discovered the island, and thought that the properties of equation, the Numbers, could be impacted by the properties of the island. This is actually why the Dharma stations were created. It's thought that each station corresponds with a number, and for some reason could change the number it corresponds with, though no one knows which numbers correspond with each station.

More info on the numbers can be found here(P.S. Don't fall in)

I enjoy watching the TV show. I find it really annoying to hear that they answered a bunch of questions in an interactive game on the internet.