Neelakantha Bhanu Prakash young math genius from Hyderabad is known as the Human Calculator from India. He won a title called "World's Fastest Human Calculator". He won gold in "Mental Calculation World Championship at Mind Sports Olympiad 2020".

Irfan 20 year old boy from Dudu in Rajasthan became viral in 2020 for his fast mental calculation of how many days a human lived when a age was given as input. It was told that he never went to school in his life.

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 Image by Gerd Altmann from Pixabay