To find out the order number (or how manyeth) the latest commit is in a Github repository, open up the command line in the folder of your repository and type in:
git rev-list --count HEAD
Find out the number of a commit using it’s SHA:
git rev-list --count <commit-SHA-1>
git rev-list --count 0b26b659f33332c70ebaa962d21171c5ffda27e5