Change the field type to Number.
I probably would have stared at this for another two hours without seeing that.
I think the thing that got me off track was the nature of the found set.
If nothing at all had come up in the find I would have known something fundamental was wrong.
But because I did get something, and it was in powers of ten, it never occurred to me to look at the field type. Sheesh.
Thanks again. I appreciate it.