Interesting story behind the number 1729
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1729 is not an ordinary number in the contemporary era of mathematics as it is known as the Ramanujan-Hardy number.
All the credit for its popularity should go only to the Indian mathematician Srinivasa Ramanujan Aiyangar.
Professor GH Hardy once visited Ramanujan when he was hospitalized after several ailments.
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Hardy pointed out at random that he had come in a taxi that had the number 1729 on it which seemed too dull and ordinary to him.
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Upon hearing this, Ramanujan immediately indicated without any second thought that 1729 was indeed a special number.
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He observed that 1729 is the smallest number that can be represented as the sum of two cubes in two different ways.
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10³ + 9³ =1729
12³ + 1³ =1729
This story is very famous among mathematicians. 1729 is called the Ramanujan-Hardy number".