The official lottery is a state- or country-run game in which players buy entries into a drawing to win money or goods. The first lotteries were organized in the 15th century by town officials to raise funds for wall construction and town fortifications, but a more widespread use of lottery prizes began in the 18th century. Initially, these lotteries were intended to reduce taxes and encourage public participation. Several states and countries still offer them today. While the commotion and potential for life-changing wealth make lotteries popular, critics point to them as harmful, particularly in low-income communities. They are also criticized as inefficient sources of revenue, since the percentage of state budgets that they raise is relatively small.

To play an official lottery, you typically purchase a ticket from a licensed retailer, usually a grocery store or convenience shop. You then pick a set of numbers in a grid on an official lottery playslip, and then give the playslip back to the retailer. The retailer then enters the tickets into a lottery machine or a computer to select the winners. You can pay for a single drawing only, or you can purchase tickets that will cover multiple draws.

If you want to watch the live lottery drawing, you can tune into local television. Many stations broadcast the drawings, which are typically aired on Tuesday and Saturday evenings following their newscasts. Generally, the jackpots for Powerball and Mega Millions are announced after these announcements. Generally, lottery winnings are paid in either lump sum or annuity form.