Lotto stores are expected to be busy today with a $42 million Powerball prize up for grabs tonight.
If struck it will be the second highest Powerball prize in history - a couple from the Hibiscus Coast won $44 million in 2016. It's enough money to fuel a great many dreams, but what are the odds of being that lucky?
Dr Matthew Parry is a statistician at the University of Otago.
He speaks to Susie Ferguson.