uutils/coreutils — pull request #201 by beatgammit (2014-05-30 01:04:04+00:00)
Title: add factor

I implemented factor using u64. I have another branch with a `bigint` version, but it is far too slow for large numbers (even numbers that fit into u64). It's in my feat-factor-bigint branch if you're interested.

I'm pretty new to rust, so criticism is graciously accepted.