The Mega Millions jackpot starts at $50 million and grows until it is hit.
Prizes equal 50% of overall sales. Overall odds of winning 1 in 23. Odds of winning jackpot prize 1 in 291 million.
Mega Millions officials may reduce prize levels for Mega Millions in the event that an unanticipated number of winner claims exceed the ailable prize fund for a given draw. In such instances the dollars allocated to each prize level impacted will be divided equally among all winners of the prize.