Mr. X and Mr. Y live in the same avenue with only 9 houses between them. The number on their houses were both prime, and Mr. X found that he could express the number of his house as the sum of the squares of the digits of Mr. y's house number.
What were their house numbers ?

X = 13 and Y = 23
X = 2^2 + 3^3 = 13

Posted by Vadi D on 2003-12-02 13:58:16