(Solved): A leprechaun places a magic penny under a girl's pillow. The next night there are 2 magic pennies u ...

A leprechaun places a magic penny under a girl's pillow. The next night there are 2 magic pennies under her pillow. Each night the number of magic pennies doubles. How much money will the girl have after 23 nights? How much money will the girl have after 23 nights? \[ \$ 8388607 \]