SUMMERS: The 14-year-old from India has set the Guinness World Record for mental calculation. SHAPIRO: He's been dubbed the human calculator and can solve complex math problems in his head in seconds.

A 14-year-old math prodigy from India, Aaryan Shukla, broke six Guinness World Records in 24 hours with his lightning-fast mental calculations. Known as a human calculator, Aaryan uses daily ...

SUMMERS: The 14-year-old from India has set the Guinness World Record for mental calculation. SHAPIRO: He's been dubbed the human calculator and can solve complex math problems in his head in seconds.