Multiple choice general knowledge

What is ramanujam,s number ?

  1. 1917

  2. 1971

  3. 9271

  4. 1729

  5. 1792

  6. 1297
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D Correct answer
Explanation

1729 is known as the Hardy-Ramanujan number or taxicab number. It is the smallest positive integer expressible as a sum of two cubes in two different ways: 1729 = 1^3 + 12^3 = 9^3 + 10^3. G.H. Hardy mentioned this number in his anecdote about Ramanujan.

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