Functionality:
- Intuitive and fast
- Check everywhere if a number is prime or not
- Calculate all dividers of the number you entered
- Four different calculation methods
- Offline use
- Processing takes place directly on Mac
- macOS Catalina 10.15 support


Use:
- Enter a number via the numeric keypad, if you were wrong to type use the "Delete" button at the bottom right, while if you want to enter another value press the "Delete All" button at the bottom left.
- Select the calculation mode between "Automatic", "Fast", "Balanced" and "Accurate". (Recommended "Automatic")
- After you have clicked on the "CHECK" button you will see if the number you entered is prime. If it is not, you can see all the dividers of that number.


WARNINGS:
- Primo allows you to calculate very high values and the processing speed can vary depending on the Mac model, if your device takes too long you can use the "Clear All" button at the bottom left to cancel the operation.

- Please write to the support email if you encounter any bugs.