The $70 million Oz Lotto jackpot - the biggest in five years - has gone off, with an entry from NSW and one from Victoria taking out $35 million each.
A man from Lithgow was "blown away" when he found out about his won, but the Victorian winner is still unknown.
"Oh fair dinkum? You're kidding?! That is the best news I've had in a long time. Hallelujah!" the Lithgow winner, aged in his 50s, said when told of his win.
"It goes without saying I'll be helping the kids out and I'm sure my retirement plans will be fast-tracked."
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The mystery Victorian winner is being urged to check their entry.
Despite being registered, Oz Lotto couldn't contact the winner because their details were incomplete.
The winning entry was purchased online from Australia's official lotteries at thelott.com.
In addition to the two division one winning entries, more than 1.17 million prizes worth more than $26.4 million were won in divisions two to seven across Australia.
Tuesday night's result ends eight weeks of jackpotting which saw Oz Lotto climb to $70 million. Next Tuesday's jackpot is $2 million.
But it's not the end of a big lotteries week. Thursday's Powerball is at $80 million.
