返回列表 发帖

楼主老大有没有正解,我想研究一下

nothing is impossible to a willing heart

TOP

8个

TOP

What does it mean the number of zero?  Only at the end?

 

say 120030

only one zero or three zeros?

 

If only at the end, then the problem is easy.  Otherwise it is too complicated.

TOP

1-50连乘,一共可以分解出8个7(49有2个7),所以是8个0。

TOP

7*7=49, 7又是prime number,所以一共有7+1=8个

TOP

0个0

TOP

返回列表