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)

Thanks steve!

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