81

Wikipedia (ch?-iu e pek-kho-choan-su) beh k? li kong...
80 81 82
so?-in-so? hun-kai 3 4
J?-chin-hoat 1010001
Pat-chin-hoat 121
Si?p-j?-chin-hoat 69
Si?p-lio?k-chin-hoat 51
J?-si?p-chin-hoat 41
Lo-ma so?-j? LXXXI

81 (八十一 / peh-cha?p-it) s? 80 kah 82 chi-kan e ch?-jian-so? .

Siong-koan [ siu-kai | kai goan-si-be ]

T? Wikimedia Commons teng e siong-koan tong-an: 81