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.
(In reply to re: A start (spoiler)
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