There is a four digit number such that when multiplied by a single digit produces another four digit number
i.e. "ABCD"*E="FGHI " (the letters between the quotation signs designate a concatenation, not the product).
The letters represent 9 non-zero distinct digits.
Find the two existing solutions to this 9-digit problem.
(In reply to re: No Subject
by Steve Herman)
Does this work?
'Now d*e-i=10 k1 from which it is readily apparent that e, d and i are all odd or i and at least one of (d,e) are even."
Posted by broll
on 2010-09-17 00:37:37