Remember, we saw that last time looking at the binary numbers. 2 to the n is a big number.

还记得吗，我们上次看过的二进制数,从2到n是一个很大的数。

麻省理工公开课 - 计算机科学及编程导论课程节选

Seventy-nine. In fact, if you add up each of these numbers, 9 you should get the decimal number 79 79 from this binary number here.

9，事实上，如果你把这些数字累加，你应该能从这些二进制中9,得到十进制数。

哈佛公开课 - 计算机科学课程节选