1729 (number) - Wikipedia 1729 is the natural number following 1728 and preceding 1730 It is the first nontrivial taxicab number, expressed as the sum of two cubic positive integers in two different ways It is known as the Ramanujan number or Hardy–Ramanujan number after G H Hardy and Srinivasa Ramanujan
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What is so special about Ramanujan number 1729? Ramanujan explained that 1729 is the only number that is the sum of cubes of two different pairs of numbers: 123 + 13, and 103 + 93 It was not a sudden calculation for Ramanujan
Historical Events in 1729 - On This Day Historical events from year 1729 Learn about 10 famous, scandalous and important events that happened in 1729 or search by date or keyword
The Hardy–Ramanujan number: What 1729 reveals about Srinivasa Ramanujan . . . The Hardy-Ramanujan number is 1729, the smallest number that can be expressed as the sum of two cubes in two different ways: 1³ + 12³ = 1 + 1728 = ہ and 9³ + 10³ = 729 + 1000 = 1729 While many readers can wonder, ‘okay, so what?’, it is the way Ramanujan saw the number that is interesting
Hardy-Ramanujan Number -- from Wolfram MathWorld "Once, in the taxi from London, Hardy noticed its number, 1729 He must have thought about it a little because he entered the room where Ramanujan lay in bed and, with scarcely a hello, blurted out his disappointment with it