The Mega Millions top prize has grown again to an estimated $640 million after there was no jackpot winner in Friday's drawing. The jackpot currently stands as the seventh largest in the game's history. Four tickets matched all five white balls to garner the second prize level in the drawing, including one ticket in South Carolina that included a megaplier to make it worth $2 million. There were seven third-prize tickets worth at least $10,000 that were purchased in New York State. Friday's winning numbers were 10, 24, 48, 51, 66 and Mega Ball 15.