Usually the fifth finger- commonly called the little finger- sometimes called the pinky finger. If you happen to see a man with six fingers on his right hand, let me know?

but perhaps we’re talking about toes?

9

I realize it’s “No stupid questions”, but they should at least be coherent.

Digit of what?

what?

Is this a kōan? If not, we could make it one.

My dry take would be, it’s commonly deemed the least significant one. Though, some cultures/languages might sort them somewhat arbitrarily. … And how much final are we talking, anyway?

42

To find out, watch this till the end:
https://www.youtube.com/watch?v=9jK-NcRmVcw

The one that gets you…

If you’re talking about the final digit of a number, it’s the last character.

For example, In the number 8765, ‘5’ is the final digit.