I was doing an exercise with the RSA encryption scheme with small numbers in Excel. I went to use the MOD function, but it just isn't working at all.

Trying a basic MOD example, I typed the following in to a fresh Excel book:

```
=MOD(2,3)
```

This results in the following:

I installed LibreOffice as a sanity check and entered the same function and it correctly returned 2.

Am I going crazy here or is my Excel broken?

I think Excel might not be parsing commas correctly, as the UI doesn't indicate that I am moving from one argument to the next. But I am not sure how to fix it.

EDIT: As per one of the answers to the question, I attempted to use the Formula interface to execute a MOD function. The results imply that my Excel is broken in some way.

EDIT 2: This is what happens when I click OK on the previous image (but I used 6 and 4 instead of 4 and 3).

`MAX`

,`MIN`

and`SUM`

) are similarly non-functional. How about simple formulas like`=2+3`

and`=4-3`

? (3) Are you using a language or keyboard layout other than US/English?5more comments