New Delhi, April 21 -- A decades-old BBC interview of Indian mathematical prodigy Shakuntala Devi has resurfaced online, once again highlighting her exceptional ability to perform rapid mental calculations.

Often referred to as the "human computer", Devi became a household name for her numerical skills, which she demonstrated across the world through public performances and media appearances. She died in 2013 at the age of 83, but her work and legacy continue to attract attention.

In the resurfaced clip, Devi is seen performing advanced calculations with remarkable speed. During the interview, she calculated the 23rd root of a large number in under a minute, leaving the presenter visibly surprised.

Her abilities extended beyond roots a...