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Shakuntala Devi – The Amazing Indian Human Computer

“If you do not use a muscle or any part of the body, it tends to become atrophic. So is the case with the brain. The more you use it, the better it becomes.”


Shakuntala Devi – The Amazing Indian Human Computer
Shakuntala Devi

Quick Facts

  • Name: Shakuntala Devi
  • Famous As: The Human Computer
  • Birth Date: 4 November 1929
  • Died On: 21 April 2013
  • Nationality: Indian
  • Birth Place: Bengaluru, Karnataka
  • Spouse: Paritosh Banerji
  • Children: Anupama Banerjee


Shakuntala Devi was the most famous mnemonist of India who could perform long and complex mathematical operations mentally. Due to this singular prodigious talent, she was popularly known as the “Human Computer”.

Her talent earned her a mention in The Guinness Book of World Records. She was also an accomplished author and wrote a number of books, including novels as well as texts about mathematics, puzzles, and astrology.

Shakuntala Devi – The Amazing Indian Human Computer
Image Source

Early Life

Shakuntala Devi was born on 4 November 1929, in Bengaluru, Karnataka, to an orthodox Kannada Brahmin family. Her father, instead of following the family tradition of becoming a temple priest, chose to work in a circus as a trapeze artist, lion tamer, tightrope walker and magician.

When Shakuntala Devi was just three years old, her father discovered her ability to memorise numbers, without having any formal education.

Her father began displaying her ability at calculation in road shows. When she was six year old, she demonstrated her arithmetic abilities at the University of Mysore.

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Worldwide Recognition and Demonstrations

In 1944, Shakuntala Devi went to London with her father. She travelled the world demonstrating her mathematical talents. She toured Europe in 1950 and America in 1976.

In 1977, she gave the 23rd root of a 201-digit number in 50 seconds. This event took place at Southern Methodist University. Her answer was confirmed by the US Bureau of Standards; which used a specially programmed UNIVAC 1101 computer, to handle such a large calculation.

In 1980, she mentally multiplied two randomly picked 13-digit numbers and correctly answered it in 28 seconds. This demonstration was done at the Computer Department of Imperial College London. This event was recorded in the 1982 Guinness Book of World Records.

In 1988, she went to the US to have herself tested by Arthur Jensen, at the University of California. Her performance was tested on several mathematical tasks involved with the calculation of large numbers.

She easily provided the solution to problems which included calculating the roots of huge numbers. These findings were published in the academic journal Intelligence in 1990.

Shakuntala Devi – The Amazing Indian Human Computer
Shakuntala Devi – The Human Computer (Image Source)

Her Books

Shakuntala Devi wrote a book ‘Figuring: The Joy of Numbers’, which is still a bestseller. In her book she explained many of the methods she used for her mental calculations. She has also written cookery books and a novel.

In 1977, she wrote The World of Homosexuals, which is considered as the first study of homosexuality in India.

She was considered a pioneer in this field and treated homosexuality in an understanding and empathetic way. The book called for decriminalization of homosexuality, and full and complete acceptance, not just tolerance and sympathy.

Personal Life

When she returned to India in the 1960s, she married Paritosh Banerji, an Indian Administrative Service officer from Kolkata. They later divorced in 1979. She has a daughter, Anupama Banerjee.

In 1980, she also contested for the Lok Sabha elections from Bombay South and Medak, in Telangana. At Medak she stood against Mrs. Indira Gandhi, and lost from both the constituencies. She was also an astrologer.

Shakuntala Devi – The Amazing Indian Human Computer
Shakuntala Devi – The Famous Mnemonist of India

Death of a Legend

In April 2013, Shakuntala Devi was admitted to a hospital in Bengaluru. For two weeks she suffered from respiratory problem, and later from complications of the heart and kidneys.

On 21 April 2013, she died in the hospital at the age of 83 years. The same year, on her 84th birth anniversary on 4 November, Google honoured her with a Doodle.

Inspirational Quotes by Shakuntala Devi

“I don’t even possess a car. I ride in auto-rickshaws because I like to be a part of the masses. I don’t want to single myself out as someone up and above.”

“Without mathematics, there’s nothing you can do. Everything around you is mathematics. Everything around you is numbers.”

“Education is not just about going to school and getting a degree. It’s about widening your knowledge and absorbing the truth about life.”

“If you do not use a muscle or any part of the body, it tends to become atrophic. So is the case with the brain. The more you use it, the better it becomes.”

Shakuntala Devi was not just a mathematical genius but also a great philanthropists who helped the poor students and especially the girl child.

Born in a poor family and growing up in the slums, she was very sensitive to the poverty and deprivation amongst poor children.

She was also a mathematics evangelist and played a big role in making mathematics popular and interesting for students.

She wrote several books to help students develop a keen interest in mathematics and understand it better. Through her “Shakuntala Devi Education Foundation Public Trust” she made education accessible to underprivileged children.

More than being a Human Computer, she was a very compassionate human being and a truly inspirational celebrity.



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Raj Kumar Hansdah
Raj Kumar Hansdah
Raj Kumar Hansdah, better known as RK, fell in love with books at his mother’s knees; and the fascination with the printed word kept growing over the years and still continues to be his passion. An alumnus of IIM-Indore and IISWBM-Kolkata, he had also attended IIM-Calcutta. He has more than two decades of corporate experience with companies in the public and private domain, namely SAIL, Jaypee Group, and Adani Group at the rank of General Manager in the Human Resources vertical. He loves to freelance as a literary consultant, a management consultant, and a writer. When he is not busy reading, ghostwriting or working on his debut thriller; not necessarily in that order; he loves to spend time with his wife and son.

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