Op Amp high voltage output
No it isn't possible.
Your op-amp can't produce an output any higher than the power supply voltage you connect it to.
Those very high gain values you'll find on a typical op-amp's datasheet are only possible when its given very tiny input signal voltages to amplify.
For example if the gain is 100,000 and the input voltage is 0.1mV (0.0001V) then the output would be 10V (assuming the you've given the op-amp at least a 10V power supply).
But if the input signal voltage is 1V and the gain and power-supply voltage are the same, then you'll still only get 10V out.

For the technically inclined - yes I'm ignoring the fact that op-amps are rarely, if ever, used open-loop and I'm assuming an op-amp with perfect rail-to-rail output swing.