Kaprekar Number/Examples/142,857
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Example of Kaprekar Number
$142 \, 857$ is a Kaprekar number:
| \(\ds 142 \, 857^2\) | \(=\) | \(\ds 20 \, 408 \, 122 \, 449\) | ||||||||||||
| \(\ds 20 \, 408 + 122 \, 449\) | \(=\) | \(\ds 142 \, 857\) |
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $142,857$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $142,857$