The numbers of the five white balls and one red ball drawn in the high-stakes Multi-State Lottery Association’s semiweekly Powerball game were announced on a national telecast Saturday night: The former were 21, 24, 36, 42 and 45, while the latter was 15.

Results are pending, but the lottery’s sponsor estimated before the drawing that a jackpot-winning ticket or tickets could have an annuity value of $307.2 million.

If there were only one jackpot-winning ticket, then it would produce the third-biggest Powerball winner of 2013. The biggest Powerball winners so far this year are Florida’s Gloria C. MacKenzie, who on May 18 won a jackpot with an annuity value of $590.5 million and a cash value of $370.9 million, and New Jersey’s Pedro Quezada, who on March 23 won a jackpot with an annuity value of $338.3 million and a cash value of $221.0 million.

Both MacKenzie and Quezada chose to collect their winnings not on an annuity basis but on a cash basis, which historically has been the most popular option among big Powerball winners.

Powerball is played in 43 states, the District of Columbia and the U.S. Virgin Islands.