KAPREKARS CONSTANT !!
Take a 4 digit number with at least 2 different digits. Example being 5387.
Arrange the number is ascending order, then subtract the acsending order from the original number.
5387 - 3578 = 1,809
Arrange the results in ascending AND descending order, then subtract ascending from descending and keep doing that.
9810 - 189 = 9,621
9621 - 1269 = 8,352
8532 - 2358 = 6,174
Repeating the process will always somehow reach 6174 in about 7-8 steps or less
Original # - Number in ascending numeric order = resulting #
THEN resulting # in descending numeric order - resulting # in ascending numeric order
9367 - 3679 = 5,688
8865 - 5688 = 3,177
7731 - 1377 = 6,354
6543 - 3456 = 3,087
8730 - 378 = 8,352
8532 - 2358 = 6,174
6294 - 2469 = 3,825
8532 - 2358 = 6,174
3825 - 2358 = 1,467
7641 - 1467 = 6,174
8364 - 3468 = 4,896
9864 - 4689 = 5,175
7551 - 1557 = 5,994
9954 - 4599 = 5,355
5553 - 3555 = 1,998
9981 - 1899 = 8,082
8820 - 288 = 8,532
8532 - 2358 = 6,174
