[数学] 问道practice book的题 [复制链接]

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电梯直达

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发表于 2008-11-7 19:24:04 |只看该作者 |倒序浏览

For how many positive integers "k" does the ordinary decimal representation of the integer k! end in exactly 99 zeros?

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问道practice book的题

https://bbs.gter.net/thread-891174-1-1.html

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