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Danica McKellar poses $1 million math challenge

03:06

Actress Danica McKellar is passionate about encouraging girls to excel in math and shares a story about a Texas banker who will give $1 million to whomever can prove the math proposition known as Beal’s conjecture. With a little help from Jordan Ellenberg of the University of Wisconsin-Madison, Kathie Lee and Hoda tackle a series of math questions.