If someone ever told you that the answer... ...Pretty cool, huh? 6174 is known as Kaprekar 's constant. The math operation above, d... ...discovered by Indian mathematician D.R. Kaprekar , will reach 6174 after at most 7 steps (if you di...https://www.neatorama.com/2010/04/08/try-this-and-prepare-to-be-amazed/
Try This and Prepare to be Amazed...
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