MathDB

(455) 4

Part of 1995 Tournament Of Towns

Problems(1)

TOT 455 1995 Spring S O4 a0... 09 not a perfext square

Source:

7/9/2024
Prove that a0...09‾\overline{a0... 09} (in which a>0a > 0 is a digit and there is at least one zero) is not a perfect square.
(VA Senderov)
number theory