http://en.wikipedia.org/wiki/Shakuntala_Devi
Achievements
- In 1977 in the USA she competed with a computer to see who could
calculate the cube root of 188,132,517 faster (she won). That same year,
at the Southern Methodist University she was asked to give the 23rd root of a 201-digit number; she answered in 50 seconds.[1][4]
Her answer—546,372,891—was confirmed by calculations done at the U.S.
Bureau of Standards by the Univac 1101 computer, for which a special
program had to be written to perform such a large calculation.[11]
- On June 18, 1980, she demonstrated the multiplication of two
13-digit numbers 7,686,369,774,870 × 2,465,099,745,779 picked at random
by the Computer Department of Imperial College, London. She correctly answered 18,947,668,177,995,426,462,773,730 in 28 seconds.[2][3] This event is mentioned in the 1982 Guinness Book of Records.[2][3]
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