7 ms·
6174 is Kaprekar's constant: http://en.wikipedia.org/wiki/Kaprekar_constant http://en.wikipedia.org/wiki/Kaprekar_constant
by adrianp 15y ago
6174 is Kaprekar's constant: http://en.wikipedia.org/wiki/Kaprekar_constant http://en.wikipedia.org/wiki/Kaprekar_constant