perplexus.info :: Just Math : Fortieth logs

Fortieth logs (Posted on 2011-05-31)

It turns out that the common logarithms of each of the numbers from 2 through 9 can be very well approximated by rational numbers of the form n/40.

Derive each of the numerators with no calculation aids beyond pencil and paper.

See The Solution Submitted by Jer

Rating: 4.5000 (2 votes)

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

re(2): A start (spoiler)

| Comment 3 of 15 |

(In reply to re: A start (spoiler) by Charlie)

I dont want to give it away so here is a subtle hint: 7 can be done in a manner similar to the way Steve did 3.

Posted by Jer on 2011-05-31 17:06:27

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