Lottery jackpot is the top prize for a lottery game. The winner takes home the entire jackpot amount if they match all winning numbers. The odds of winning a jackpot prize are astronomical, but there are people who do win them. For this reason, some people continue to spend money on lottery tickets, despite the high chances of losing.

Most states allocate a portion of their lottery profits to address gambling addiction, while some use it to help fund public works projects. Others use it to boost education funding. For example, a group of Michigan players recently won a $1.05 billion jackpot, which they plan to donate to their community.

Usually, lottery winners can choose whether to take a lump sum or annuity payment. The annuity option gives them the jackpot prize in 30 payments over 29 years, which includes interest. Most people opt for the lump sum, as it allows them to control their money immediately. It also prevents them from squandering the money or investing it incorrectly, which can lead to financial trouble.

The resurgence in mega-sized jackpots may be due to several factors. First, Powerball and Mega Millions increased ticket prices in 2017, allowing the funds to accumulate more quickly. Then, both lotteries changed their odds. They now give players roughly a one-in-300 million chance of winning, compared to the previous odds of 1 in 259 million.

Lastly, rising interest rates have helped to push jackpots higher. This is because the advertised jackpot amounts are based on annuities, which are influenced by interest rates.