N is a positive base ten integer having at least 2-digits but at most 4-digits, which is obtained by multiplying the sum of its digits with the product of its digits. It is known that N cannot contain any leading zero.
Determine all possible value(s) of N.
(In reply to Count em up!
by ed bottemiller)
But the idea is to start out with N, and use the product and sum of its digits so as to come out with the same N, not some other number.
Posted by Charlie
on 2010-06-21 16:32:42