perplexus.info :: Numbers : Factorial Tremors

Factorial Tremors (Posted on 2019-01-16)

What decimal digit occurs most often in the sequence of factorials from 77777! to 77877! inclusive?

Note: This can be solved by logic. No computer is needed.

No Solution Yet Submitted by Danish Ahmed Khan

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Puzzle Answer

Comment 5 of 5 |

The required decimal (base ten) digit is zero.

***I hope to posit an independent explanation to this puzzle soon.

Posted by K Sengupta on 2022-05-12 23:13:29

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