D. R. Kaprekar found an interesting behaviour of four-digit number (say, 6349). Take any number; sort its digits in ascending (3469) and descinding (9643) order; subtract these (9643 - 3469 = 6174). Repeat these steps a couple of times. Surprisingly, you'

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Categories

Mathematics

License

GNU General Public License version 2.0 (GPLv2), Mozilla Public License 1.1 (MPL 1.1)

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Additional Project Details

Languages

English

Intended Audience

End Users/Desktop

Programming Language

Java

Related Categories

Java Mathematics Software

Registered

2001-05-07