Re: YES IT'S 9867312

[Le Minh Trung <trung@ait.ac.th>]

Hi Dung and Hong,

  I don't understand well what you meant.  I think the problem is
  clear

Hong's mention is correct. Mr Toan's problem is unclear. We should
consider (at least) 2 cases:
1. Find the largest seven-digit number containing different digits and
is divisible to every digit (except 0), i.e. ALL digits from 1 to 9.
Solution is 9843120 from Hong.
2. Find the largest seven-digit number containing different digits and
is divisible to every ITS digit, i.e. ONLY digits which appear in the
number.
Solution is 9867312 from You and Hong.
Sorry for this message.
--
Le Minh Trung
Asian Institute of Technology, STAR Program
P.O. Box 4 KlongLuang, Pathumthani 12120, Thailand
Internet: http://www.rsl.ait.ac.th/~trung/
Tel. (662) 524 5585 Fax. (662) 524 6147