A seven digit positive
octal integer
X is constituted by arranging the nonzero octal digits 17 in some order, so that:
 The octal number formed by the first two digits is divisible by 2.
 The octal number formed by the first three digits is divisible by 3.
 The octal number formed by the first four digits is divisible by 4.
 and, so on up to seven digits...
Determine all possible value(s) that
X can assume.
(In reply to
re: computer solution by Stephanie)
Stephanie,
I can understand your glee at find Charlie in error, but it seems that when he errs its something "minor" (if an error can be minor) within a carefully thoughtout process.
Our usual understanding here is to read numbers from left to right but it's good to see a different line of thinking, and for that matter, Charlie to accommodate it.

Posted by brianjn
on 20090331 02:05:19 