Do no trust it.
At least one of the functions (Fermat’s little theorem form 1) returns wrong values.
Add Free, Great to Use, No Purchases at all
Really great calculator app. Complete free with no adds or any in app purchases. Really nice to use and clean interface.
It works...
Well
Good
This app is the best but sometimes it fall out of app suddenly I think the problem is so big number ,please fix it