續一切經音義 5.186

5.186

一俱胝（下丁尼反梵語數名此翻為億也黃帝筭經總有二十三數億當十四數自萬已去有三等謂上中下也即十萬百萬千萬依次配之）。

一俱胝 (The second character has the fanqie *ding* + *ni* [di/zhi]. A Sanskrit numeral, translated here as *yi* (ten million/hundred million). The *Huangdi suanjing* has twenty-three numeral places in total; *yi* corresponds to the fourteenth place. From ten thousand upwards, there are three scales: the upper, middle, and lower, which correspond in sequence to one hundred thousand, one million, and ten million.)