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Line 35: ;Reference: * [http://www.cs.uwaterloo.ca/journals/JIS/VOL3/iann2a.html The Kaprekar Numbers] by Douglas E. Iannucci (2000). [http://pictor.math.uqam.ca/~plouffe/OEIS/jis/The%20Kaprekar%20Numbers.pdf PDF version] ~~<br><br>~~ ;related task [[Casting out nines]]

Kaprekar numbers: Difference between revisions

Kaprekar numbers (view source)