Hi guys, maybe any of you have ever used a number combination calculator? If yes, can you please share where to find such a calculator? I've searched the internet but couldn't find anything.

To be honest, I quite often in my work resort to various kinds of online calculators, with the help of which you can not only solve general examples, but also do various other calculations, for example, to deduce combinations of numbers and, of course, I can advise you one of the calculators that I use for these purposes, here it is https://www.calculator.io/combinations-calculator/.