Question 1143759
<pre>You didn't say we had to use all the digits, so the smallest would be 2.
No digit is repeated in 2.  lol

But you probably meant a 4-digit number.  Put the 4 digits in order left to right,
smallest to largest.

So 2389 is the least 4-digit number that can be formed out of the digits of 9823.

Edwin</pre>