( CNN ) -- It apparently took him a few days to realize it , but California resident Steve Tran is one of the two winners of the second-largest jackpot in U.S. history , lottery officials said Friday . Tran , a delivery driver from Northern California , came forward Thursday to claim his half of last month 's $ 648 million Mega Millions jackpot , after spending nearly two weeks oblivious to his win , the California Lottery said . Tran still has 60 days to decide how to take his prize , the lottery said . He can choose either to receive his half in annuity payments over 30 years , or take his share of the lump-sum cash option , valued at $ 173.8 million before taxes , it said . Georgia resident Ira Curry , 56 , was the other winner . Curry , who claimed her prize a day after the December 17 drawing , took the $ 173.8 million lump-sum option , which will net her about $ 120 million after federal and Georgia taxes . Lottery winner gives $ 40 million jackpot to charity . Tran , who declined to speak to reporters but told his story to lottery officials , bought his winning ticket at a San Jose gift shop and put it in a pile of other lottery tickets that he bought in other towns while making runs as a delivery driver , the lottery said . It was n't until Monday , after taking a vacation with his family , that he remembered to check his ticket , he said . `` I woke up in the middle of the night . I remembered , ' I think I went to San Jose , ' '' he said , according to the lottery . The winning numbers were 8 , 14 , 17 , 20 and 39 , with a Mega ball of 7 . For New York lottery winner , $ 1 million was blowing in the wind . Opinion : The big swindle - in lotteries , the poor are the biggest losers . CNN 's Cristy Lenz contributed to this report .
Steve Austin claims his half of $ 648 million Mega Millions won . Tran told lottery officials he did n't realize he won until Monday -- two days after winning . Jackpot was second - largest in U.S. lottery history . Georgia woman claimed other half last month .