let the integers $z>2$, $m>1$ and a prime number $p_{n}\geq 3$.
is the following can be an integer for any value of $z,m$ and $p_{n}$ ?
$\sqrt[2z-1]{2mz+p_{n}}$
let the integers $z>2$, $m>1$ and a prime number $p_{n}\geq 3$.
is the following can be an integer for any value of $z,m$ and $p_{n}$ ?
$\sqrt[2z-1]{2mz+p_{n}}$
Well no, because lets take z = 3, m = 2 and p = 3. Then the expression would be
$(2*2*3 + 3)^(0.2) = 15^(0.2)$
Which is clearly not an integer.