Mega Millions, Powerball prizes come down to math, long odds

DES MOINES, Iowa (AP) — For all the anticipation about whether someone will finally snag the gigantic Mega Millions and Powerball jackpots, the games come down to two things: simple math — and very long odds.But there are some quirks and surprises about the math equations that likely will soon vault someone into stratospheric wealth after the jackpots grew for months without a winner.WHAT ARE THE JACKPOTS?The biggest quirk starts with this fact: The advertised $1.6 billion Mega Milli