Re: YES IT'S 9867312

[Dung Trong Nguyen <nguyen@jaist.ac.jp>]

Hi Trung,

> 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.

Thank you very much, Trung. I understand the matter now. Because it's
hard to find anything to reason in the first case, I even didn't think
about it at all. Thanks again.

d~