Categories of Curta Serial Numbers
Here you can see a full list of Curta serial numbers grouped by category of number.
I selected several common categories of positive integer numbers. You can choose one o more categories, also the Curta Type,
to see the serial number list of all selected categories. For example, if you want to see all serial numbers of Curtas Type 1
that are Prime number and Palindromic number check Type 1, Prime and Palindromic checkboxes and press Show list.
Of course there are many combinations of categories with no serial numbers, for example, Composite and Prime numbers.
If you want to see the categories of a particular Curta's serial number, please go to Type & Age of your Curta.
This is only for recreational purposes, but please try it and see the results!