The winner of a $144 million Powerball jackpot has finally stepped forward, nearly three weeks after the lottery drawing, the Washington Post reported Monday.

The 82-year-old from Washington D.C. had his lawyer claim the prize on Monday on behalf of a corporation set up to keep his identity secret.

The man is a widower with 10 children and 47 grandchildren and great-grandchildren. He purchased the ticket at a local supermarket, the Post reported.

The man's lawyer David Wilmott said the man has chosen to receive a lump sum payment of $79.6 million. Wilmot accepted his winnings on behalf of the corporation, Rockson LLC, at a news conference at the lottery claim center, according to the Post.

Wilmot said the money is being put into three trusts. One trust will provide education for his family, one will pay for family healthcare and another will give money to charitable causes.

Click here to read more on this story from WashingtonPost.com.