In 1918, Indian mathematician Srinivas Ramanujan was admitted to the hospital in London, where he was visited by his colleague and long-time friend G H Hardy. The fellow mathematician had arrived in a taxi which was numbered '1729' and had thought about it on his way to the room, upon entering Ramanujan's room, Hardy blurted "it was rather a dull number," after a brief hello. When Ramanujan came to know of the number, the mathematician said "No Hardy, it is a very interesting number. It is the smallest number expressible as the sum of two cubes in two different ways."

Starting Idea Of Ramanujan Number 

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. According to his biography, "Years before, he had observed this little arithmetic morsel, recorded it in his notebook and, with that easy intimacy with numbers that was his trademark, remembered it." The unique number later came to be known as the Hardy-Ramanujan number.

MYSTERY OF RAMANUJAN NUMBER 

<h2>The National Mathematics Day is held in the honour of Indian mathematician Srinivasa Aiyangar Ramanujan.</h2><div>advertisement</div><img alt="IndiaToday.in" title="IndiaToday.in" src="https://akm-img-a-in.tosshub.com/indiatoday/styles/user_picture/public/images/reporter/202105/india_today-1200x768.png?va4G4DnTNL6sZ86bHAsMyxfGHwNhSeeo&amp;size=56:56" width="56" height="56"><div itemprop="description">Indian mathematicians Srinivasa Aiyangar Ramanujan. (Photo: Twitter/VPSecretariat)</div>In 1918, Indian mathematician Srinivas Ramanujan was admitted to the hospital in London, where he was visited by his colleague and long-time friend G H Hardy. The fellow mathematician had arrived in a taxi which was numbered '1729' and had thought about it on his way to the room, upon entering Ramanujan's room, Hardy blurted "it was rather a dull number," after a brief hello.When Ramanujan came to know of the number, the mathematician said "No Hardy, it is a very interesting number. It is the smallest number expressible as the sum of two cubes in two different ways." This conversation, which is the base of the mysterious Hardy-Ramanujan number is documented in his biography 'The man who knew infinity' by Robert Knaigel<h3>THE MYSTERY OF RAMANUJAN NUMBER</h3>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. According to his biography, "Years before, he had observed this little arithmetic morsel, recorded it in his notebook and, with that easy intimacy with numbers that was his trademark, remembered it."The unique number later came to be known as the Hardy-Ramanujan number.<h3>THE MAN WHO KNEW INFINITY</h3>December 22 is marked as the National Mathematics Day every year, remembering one of India's greatest mathematicians Srinivasa Aiyangar Ramanujan, who contributed to explaining the analytical theory of numbers and worked on elliptic functions, continued fractions, and infinite series.Born on December 22, 1887, in a small village Erode southwest of Chennai in a Tamil Brahmin Iyengar family. A student who failed exams due to his negligence for non-mathematical subjects, Ramanujan worked on summing mathematical geometric and arithmetic series.Ramanujan's flair for mathematics was first recognised by a colleague when he started working as a clerk in the Madras Port Trust in 1912. His work was documented in the Journal of the Indian Mathematical Society, where he showed the relations between elliptic modular equations.In 1913, Ramanujan, who had not been a university graduate, was invited by G H Hardy to Cambridge and then began their long-standing collaboration that changed the field of mathematics. He graduated from Cambridge in 1916 with a Bachelor of Arts by Research. In 1918, he was elected a fellow of the Cambridge Philosophical Society, followed by an election as a fellow of the Royal Society of London.At the time of his death in 1920, Ramanujan had discovered his own theorems and independently compiled 3900 results.<h3>NATIONAL MATHEMATICS DAY</h3>Former prime minister Manmohan Singh in 2012 declared December 22 as National Mathematics Day to honour the legendary mathematician.Vice President Venkaiah Naidu Tweeted, "My humble tributes to the legendary mathematician, Shri Srinivasa Ramanujan on his birth anniversary, which is also celebrated as National Mathematics Day. On this day, let us spread awareness on the importance of mathematics in sustainable development, innovation and most of all in improving the quality of lives."Professor Neena Gupta, a mathematician at the Indian Statistical Institute in Kolkata, has been awarded the 2021 DST-ICTP-IMU Ramanujan Prize for Young Mathematician. The Ramanujan Prize is given annually to an eminent Mathematician by the International Centre for Theoretical Physics (ICTP), Trieste and the government of India.

The National Mathematics Day is held in the honour of Indian mathematician Srinivasa Aiyangar Ramanujan.

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In 1918, Indian mathematician Srinivas Ramanujan was admitted to the hospital in London, where he was visited by his colleague and long-time friend G H Hardy. The fellow mathematician had arrived in a taxi which was numbered '1729' and had thought about it on his way to the room, upon entering Ramanujan's room, Hardy blurted "it was rather a dull number," after a brief hello.

When Ramanujan came to know of the number, the mathematician said "No Hardy, it is a very interesting number. It is the smallest number expressible as the sum of two cubes in two different ways." This conversation, which is the base of the mysterious Hardy-Ramanujan number is documented in his biography 'The man who knew infinity' by Robert Knaigel

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. According to his biography, "Years before, he had observed this little arithmetic morsel, recorded it in his notebook and, with that easy intimacy with numbers that was his trademark, remembered it."

The unique number later came to be known as the Hardy-Ramanujan number.

December 22 is marked as the National Mathematics Day every year, remembering one of India's greatest mathematicians Srinivasa Aiyangar Ramanujan, who contributed to explaining the analytical theory of numbers and worked on elliptic functions, continued fractions, and infinite series.

Born on December 22, 1887, in a small village Erode southwest of Chennai in a Tamil Brahmin Iyengar family. A student who failed exams due to his negligence for non-mathematical subjects, Ramanujan worked on summing mathematical geometric and arithmetic series.

Ramanujan's flair for mathematics was first recognised by a colleague when he started working as a clerk in the Madras Port Trust in 1912. His work was documented in the Journal of the Indian Mathematical Society, where he showed the relations between elliptic modular equations.

In 1913, Ramanujan, who had not been a university graduate, was invited by G H Hardy to Cambridge and then began their long-standing collaboration that changed the field of mathematics. He graduated from Cambridge in 1916 with a Bachelor of Arts by Research. In 1918, he was elected a fellow of the Cambridge Philosophical Society, followed by an election as a fellow of the Royal Society of London.

At the time of his death in 1920, Ramanujan had discovered his own theorems and independently compiled 3900 results.

Former prime minister Manmohan Singh in 2012 declared December 22 as National Mathematics Day to honour the legendary mathematician.

Vice President Venkaiah Naidu Tweeted, "My humble tributes to the legendary mathematician, Shri Srinivasa Ramanujan on his birth anniversary, which is also celebrated as National Mathematics Day. On this day, let us spread awareness on the importance of mathematics in sustainable development, innovation and most of all in improving the quality of lives."

Professor Neena Gupta, a mathematician at the Indian Statistical Institute in Kolkata, has been awarded the 2021 DST-ICTP-IMU Ramanujan Prize for Young Mathematician. The Ramanujan Prize is given annually to an eminent Mathematician by the International Centre for Theoretical Physics (ICTP), Trieste and the government of India.

What is so special about Ramanujan number '1729'?

Starting Idea Of Ramanujan Number

MYSTERY OF RAMANUJAN NUMBER

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