perplexus.info :: Just Math : Myriad Factorial Digit

Myriad Factorial Digit (Posted on 2011-10-01)

Reading right to left, determine the 2500th digit of 10000!

*** For an extra challenge, solve this puzzle without the aid of a computer program.

See The Solution Submitted by K Sengupta

Rating: 1.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re: now for the computer solution to the right problem

| Comment 4 of 7 |

(In reply to now for the computer solution to the right problem by Charlie)

Ah, right you are, Charlie! I got the last 2499 digits right, but my logic for getting the 2500th from the right was flawed, for just the reason you suggested.

I'll have to give a little more thought to how to do it using pencil and paper.

Posted by Steve Herman on 2011-10-03 00:45:16

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