Andy Ashkar, 34, and his brother Nayel Ashkar, 36, claimed the winning ticket in March, just days before the ticket was supposed to expire.
Andy said that he bought the ticket at his parents' store in Syracuse in 2006.
The younger brother said that he waited so long to claim because he was concerned the win would "negatively influence" his life if he didn't plan properly before being introduced as the winner.
Nayel's wife Sara told The Post-Standard of Syracuse: "It's crazy. [It's] hard to believe. It's still sinking in."
The announcement of the win was delayed for seven months partly because of a fraud investigation, which is always carried out when the winner is related to the owner of the store that sold the ticket.
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