SharePoint Patching - What number was that?

Maybe you have eidetic memory and don't need to have SharePoint build numbers translated to something human-readable like October 2012 Cumulative Update, but if you don't here's a great link to a blog which helps take the mystery out of the build numbers and out of the patching process in general:

https://blogs.technet.com/b/steve_chen/archive/2010/09/29/build-numbers-cube-sheet-for-sharepoint-2010.aspx