Do you know who is she?
Shakuntala Devi —Human Computer - Don't forget this Indian Legend
In 1977 At university of USA she was asked to give mentally the 23rd root of 91674867692003915809866092 75853801624831066801443086 22407126516427934657040867 09659 32792057674808067900227830 16354924852380335745316935 11190359657754734007568186 88305 62082101612913284556489578 0158806771 (201-digit number).
She answered in 50seconds. The answer is 546372891. It took a UNIVAC 1108 computer, full one minute and 2 seconds (10 seconds more) to confirm that she was right after it was fed with 13000 instructions.
On June 18, 1980 she demonstrated the multiplication of two 13-digit numbers 7,686,369,774,870 x 2,465,099,745,779 picked at random by the Computer Department of Imperial College, London. She answered the question in 28 seconds.
Her correct answer was 18,947,668,177,995,426,462 ,773,730. This event is mentioned on page 26 of the 1995 Guinness Book of Records.
In 1977 At university of USA she was asked to give mentally the 23rd root of 91674867692003915809866092
She answered in 50seconds. The answer is 546372891. It took a UNIVAC 1108 computer, full one minute and 2 seconds (10 seconds more) to confirm that she was right after it was fed with 13000 instructions.
On June 18, 1980 she demonstrated the multiplication of two 13-digit numbers 7,686,369,774,870 x 2,465,099,745,779 picked at random by the Computer Department of Imperial College, London. She answered the question in 28 seconds.
Her correct answer was 18,947,668,177,995,426,462
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