Find the largest number, a single string of only digits - without radix or exponent, that can be equated to a mathematical expression that uses no variables and where each and every digit, 0 to 9, is used but once in the equation. Provide the equation.
Mathematical symbols and functions are permitted, yet limit each to less than the arbitrary number of ten.
If limited to digits 0 to 5, a possible answer, for example, could be:
5!/(4 - 3) = 120.

(9+8+3+2+0)/(7+6+5+4)=1

(9+8+5)/(7+6+4+3+2+0)=1

(9+8+7+6+5+3+2)/4=10

need I go on???

Posted by Ady TZIDON on 2007-12-12 15:44:02