Without using any arithmetical symbols (+, -, *, /, or similar; other math symbols; decimal comma or periods; letters; even parentheses) or, in short, anything but the digits, build a number with the digits **1**, **3**, **5**, **7** and **9**, that is equal to a number built with the digits **2**, **4**, **6** and **8** (each digit used once and only once).

**Note: This is not a trick.** It was extracted from a book edited by Angela Dunn, a mathematician who gathered problems that appeared in many scientific periodical revues!

(In reply to

A slight modification by Larry)

you say: "...<2468> in some base n where n>8 is equal to a number in <13579> in some other base m where m>9."

**NO CAN DO! The 1st is always even , the 2d odd.**