One lucky ticket purchased in the US state of Illinois has won US $1.34 billion in the second-largest Mega Millions prize.

According to Mega Millions, if the winner opts for an immediate cash lump sum, the most popular option among lottery winners–they’ll take home US $747.2 million before taxes.

They also have the option to take the full prize money before taxes, paid out over 29 years with 30 annual payments of $42.6 million, on average.

The odds of winning the jackpot were one in 300 million.

No winner has yet come forward.

[Source: BBC/ Forbes]