Kaprekar's constant (6174)

project

Each 4 digits number converge to 6174

Choose a 4 digits number ex: 1298
Sort this original number in descendent order (9821)
Sort the original number in ascendent order (1289)
find the result of 9821 - 1289 (8532)
redo the process since you reach 6174

ALWAYS 7 STEPS OR LESS !!!

Thk for the video

If you try with a 3 digits number, it converge to 495

6174 (six thousand, one hundred [and] seventy-four) is the natural number following 6173 and preceding 6175.

This reads like an Onion parody!

What’s worse is that most Wikipedia pages about numbers are like this:

to be fair,

BYOB (Build Your Own Blocks) is the block-based programming language following Scratch and Chirp and preceding Snap!.