When are the winning numbers updated on the website? Every effort is made to ensure the accuracy of information contained on this website. This Go here website, however, is not the final authority on winning numbers, prizes, games, or other information. Winning numbers are not official until validated by the DC Lottery and its independent auditors. All winning tickets must be validated by the DC Lottery before prizes will be paid. You must be 18 years of age or older to play the games of the DC Lottery. One of the most common strategies used to try to enhance your odds of winning the Powerball lottery is to choose the most common winning Powerball numbers. These best Powerball numbers have been pulled out from the first drum many times more than expected.