1,000,001: One to change the bulb and 1,000,000 to rebuild civilization to the point where they need light bulbs again.
or
She ran away from the ball.
or
Its days were numbered.
or
Because he has such yuuuuge fans!
or
Humpty Trumpty wants Mexico to pay for it all.
or
Five. Four to decide which way the bulb ought to turn, and . . .
or