A woman purchases a Powerball lottery ticket at a convenience store in Washington, DC, January 7, 2016. (AFP photo)
The largest jackpot in US lottery history has climbed again, to a massive $900 million, as Americans dreaming of a life-changing windfall counted down the hours to Saturday's eagerly anticipated draw.
The United States is in the grip of lottery fever, with long queues forming outside lottery-ticket vendors - driving up the jackpot ever more - and Americans debating what they would do with such fabulous winnings.
The Powerball prize skyrocketed from $800 million on Friday, as the excitement built.
The lucky winner will take home an estimated $558 million if they choose a lump-sum cash prize, lottery officials said.
In the Powerball lottery, which takes place each Wednesday and Saturday at 10:59 pm (0359 GMT), five white balls are drawn from a drum containing 69 balls, and one red one is pulled from a drum with 26.
To win the jackpot, a ticket holder has to match all the numbers on the six balls selected. The winner can choose to be paid the full jackpot in annual installments over 29 years -- or take a lower one-off payment in cash.
The previous jackpot record of $656 million, in March 30, 2012, was scooped up by three winners from North Carolina, Puerto Rico and Texas.