Some articles use this formula:
$$ \Psi(r,\theta,\phi) = R(r) . \Theta(\theta) . \Phi(\phi)  $$

And some of them are used:

$$ \Psi(r,\theta,\phi) =\frac{R(r) . \Theta(\theta) . \Phi(\phi) }{r}  $$

So which is true?