You can...
=CONCATENATE(A1,A2)
with numbers in A1 and A2 which are formatted as TEXT.

Why do you say you can't?

Of course you will get a text and not a number...
If you want a number then use
=CONCATENATE(A1,A2)*1

"Brent" wrote:

Why can't I concatenate 2 cells with numbers that are formated as text?