Possible Duplicate:
$\sqrt a$ is either an integer or an irrational number.
$\sqrt{2}$ is irrational number, but $\sqrt{9} = 3$ is an integer. Are there such integers whose square root is a (non-integer)rational number?
Possible Duplicate:
$\sqrt a$ is either an integer or an irrational number.
$\sqrt{2}$ is irrational number, but $\sqrt{9} = 3$ is an integer. Are there such integers whose square root is a (non-integer)rational number?