Quick: What's 78,269 x 78,269?

Can you solve this in your head? Building on his sorcery of crunching two-digit squares, the Mathemagician, Arthur Benjamin raises the bar with impossibly large squares.

Watch the Full Program Here: https://youtu.be/7YNQIVoPRjg
Original Program Date: June 5, 2010

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Видео Quick: What's 78,269 x 78,269? канала World Science Festival