Winning numbers for Mega Millions $830 million jackpot announced

The jackpot has swollen to an estimated $830 million

The jackpot would be the nation's fourth-largest lottery prize of all time and the third-largest Mega Millions prize

The Mega Millions top prize has grown so large because no one has matched the game's six numbers since April 15

The chances of winning the jackpot are very small - about 1 in 302.5 million

The biggest ever lottery payday was a $1.58 billion Powerball jackpot won in 2016

The winning numbers for Tuesday night's Mega Millions drawing are: 29, 63, 66, 7, 60 and a 15 "mega ball."

According to Mega Millions, three big jackpots have been won this year

A $426 million pot was awarded in California in January, a $128 million ticket in New York in March, and a $110 million prize in Minnesota in April