Determine all possible 7-digit decimal (base 10) perfect square(s), each of whose digits is nonzero and even.

Note: While a solution is trivial with the aid of a computer program, show how to derive it without one.

    nice trio:   2862864, 8282884, 8868484,

a subset of A103705 

 

   corrected:A103751

Edited on October 26, 2008, 4:24 am

Posted by Ady TZIDON on 2008-10-25 13:48:23