A Frenchman set a new world record for mental arithmetic at Queens Museum of Sciences in New York on Thursday, solving the cube root of a 200 digit number in just 72.4 seconds.
Alexis Lemaire, now studying for a doctorate in artificial intelligence in Reims, France, had to work with a 17-line number generated by a computer. His answer, in less than two minutes, was 2,397,207,667,966,701 (or 2 quadrillion, 397 trillion, 207 billion, 667 million, 966,701).
"The first digit is easy and so is the last, but the middle ones are very hard," said Lemaire, adding that anyone can do it, but he has a high-speed mind and at times his brain works very, very rapidly.
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