Srinivasa Ramanujan is perhaps the greatest mathematician from India and counted among the top contributors to the subject of mathematics also called as father of mathematics in India. National mathematics day (December 22) is celebrated to commemorate his birthday.

Revered by maths for decades, his works are still an inspiration for young aspirants in the field that’s the reason he is called as father of mathematics. He is one of the important people in top 10 Indian inventions and discoveries.

## srinivasa Ramanujan inventions and discoveries

He invented lots of theorems and derivations the most important invention in mathematics are a Hardy-Ramanujan number, the Ramanujan Conjecture, Ramanujan prime, Ramanujan-Soldner constant, Ramanujan theta function, Ramanujan’s sum, Rogers-Ramanujan identities, Ramanujan’s master theorem, divergent series.

He invented over 400 original theorems by himself. His works have earned him a great honor and often counted among the famous mathematicians like **Gauss, Euler, and Jacobi**. Srinivasa Ramanujan demonstrated his mathematical genius even as a 10-year-old.

His memory for mathematical formulas and constants seems to have been boundless: he amazed classmates with his ability to recite the values of irrational numbers like π, e, and √2 to as many decimal places as they asked for.

## srinivasa Ramanujan contribution to mathematics

srinivasa Ramanujan contributions to the analytical theory of numbers, elliptic functions, continued fractions and infinity. In 1900 Ramanujan work on his own on mathematics summing geometric and arithmetic series. Ramanujan invented nearly 120 theorems on imply divisibility properties of the partition function.

### Euler’s constant

By 1904 Ramanujam and Euler researching about the Euler’s Constant. Ramanujan investigated the series (1/n) and calculated *Euler’s constant* to 15 decimal places.

### Partition of whole numbers

He motivated by the Partition of whole numbers and developed a formula for the partition of any number, which can be made to yield the required result by a series of successive approximation for Example 3=3+0=1+2=1+1+1.

### Ramanujan number

1729 is called as a Ramanujan number. It is the smaller number which can be expressed as the sum of two cubes in two different ways- 1729 = 13 + 123 = 93 + 103.

## Top 10 Interesting facts about him

At Indiat20, we have made attempts to spread the genius of Ramanujan to provide encouragement and inspiration for young mathematicians. Here we are presenting the interesting facts about Ramanujan in honor of the maths genius **Srinivasa Ramanujan for his contribution to Mathematics**.

We have found more interesting facts about Srinivasa Ramanujan. Use the below button to see those top 10 most interesting facts about him READ THIS LIST ONE BY ONE FROM NUMBER 10

### #1 BOOKS AND MOVIES ABOUT SRINIVASA RAMANUJAN

Ramanujan: Twelve Lectures on Subjects Suggested by His Life and Work, The Indian Clerk, The Man Who Knew Infinity: a Life of the Genius Ramanujan are some of the books about the life of the great mathematician. Ramanujan’s Notebooks and Ramanujan”s Lost Notebook, Ramanujan: Essays and Surveys and Ramanujan’s Lost Notebook are books that talk about Ramanujan’s work. An acclaimed director who directed the famous movie Bharathi is directing a movie named Ramanujan based on the life and works on Ramanujan. The Indo-British collaboration film stars Abhinay Vaddi, Suhasini Maniratnam, Bhama, Kevin McGowan and Michael Liebe.

### #2 RAMANUJAN EARLY DEATH AT 32

Ramanujan returned to India in 1918 to give a chance for his body to recuperate. He was diagnosed with tuberculosis. Ramanujan died in Kumbakonam at the age of 32. His wife remained a widow and died in 1994. A recent insight into the medical records revealed that he might have developed hepatic amoebiasis caused by two episodes of severe dysentery during his early years in Madras.

### #3 RAMANUJAN ELECTED FELLOW OF ROYAL SOCIETY

Ramanujan became a fellow of the Royal society in 1918. He is one of the youngest to hold the honor till date and the second Indian to become a fellow of the prestigious society. The following year he became the first Indian to be elected a Fellow of Trinity College, Cambridge. By then Ramanujan’s health has deteriorated contributed by the cold weather and scarcity of vegetarian food during World War I.

### #4 RAMANUJAN AWARDED B.A BY RESEARCH OF CAMBRIDGE UNIVERSITY

After spending a year at the University of Madras and working on his papers, Srinivasa Ramanujan finally arrived in England in 1914. He collaborated with G.H.Hardy and Littlewood and published a number of papers on highly composite numbers, Elliptic functions and refined a number of his early works to perfection. He was awarded B.A degree (called Ph.D. after 1920) by research for his work on highly composite numbers.

### #5 G.H.HARDY’S IMPRESSION ABOUT RAMANUJAN’S WORK

Undeterred by the response from University College London, Ramanujan sent his works to Cambridge with the help of some friends. G.H.Hardy who worked in Trinity College went through Ramanujan’s work and was both impressed as well as grew doubtful due to the nature and depth of his work which he did not expect from an Indian without any formal education. G.H.Hardy invited Ramanujan to join Trinity College but he refused to leave the country and was admitted to the University of Madras and offered a scholarship of Rs.75 per month. The scholarship helped him to concentrate on his work which was awarded following his letter to G.H.Hardy stating To preserve my brains I want food and this is my first consideration.

### #6 RAMANUJAN REJECTED BY UNIVERSITY COLLEGE LONDON

Indian Mathematical Society’s founder member Ramachandra Rao along with few admirers including E.W.Middlemast presented Ramanujan’s work to University College London. M.J.M.Hill found his works riddles with holes as well as lacking the foundation owing to his informal approach to the subject. He was therefore not offered an admission to the college.

### #7 RAMANUJAN SUFFERED FROM MANY HEALTH PROBLEMS

Ramanujan had suffered many health problems right from his childhood till his death. Soon after marriage he developed hydrocele in his testicles and did not have the money for an operation. However, a doctor volunteered to get it removed by operation for free. As a child, Ramanujan contracted smallpox but managed to survive during the outbreak which killed many in Thanjavur district at the time.

### #8 RAMANUJAN MARRIES S JANAKI AMMAL

Ramanujan married S Janaki Ammal in 1906. He was 23 and his wife was 10 years old. Ramanujan chose to live separately until his wife attained 12. By 1911 he was very popular in Madras circles as a mathematical genius. By the time he chose to live with his wife, Ramachandra Rao of Indian Mathematical Society helped him secure a job at Accountant General’s Office in Madras.

### #9 SRINIVASA RAMANUJAN FAILS IN F.A (FIRST EXAMINATION OF ARTS)

Srinivasa Ramanujan’s failed in the F.A exam two years in a row and he had to leave college without a degree. Though he was excellent in mathematics, his poor performance in other subjects prevented him from getting a degree and kept him poor for many years to come. Lacking a degree, Ramanujan has to beg even for mean clerical jobs despite his genius.

### #10 SRINIVASA RAMANUJAN SCHOLARSHIP REVOKED AT COLLEGE

Ramanujan was admitted on scholarship to Government Arts College, Kumbakonam. After the first year, his scholarship was not renewed because of his poor performance in all subjects except mathematics. So he had to quit and he ran away from home. After a month’s stay in Rajahmundry, he traveled to Chennai and enrolled at Pachaiyappa’s College.