Strange Words and Ideas

Inside the blog post Strange Words and Ideas over at Investigate Ingress, the following three codes where found:

[1] lvilxxxvlxixlxxviiiliVlxxviiilivlxvililxxxii
[2] kfkbzqtqeobbpvmexuzvybiixlqtlbclroz
[3] 7c4848a2add0446ccfc3b091f8de7e23297ab48395905d5d6f00ff0abab5a52a2ae1a95ffdee0000827f006a4effa343ba160c738678c19a6bff4f00d2b48c

Code #1

Observations

[hint]All the letters used in the code looks like what was once used for counting.
[/hint]

Code #2

Observations

Code #3

Observations

[hint]This is a long code, so look at how it can be columnised to make smaller, more usable chunks and what those chunks can represent.
[/hint]