Multiple choice general knowledge history

What is Ramanujan number ?

  1. 1728

  2. 728

  3. 1729

  4. 729
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

1729 is the famous Hardy-Ramanujan number, the smallest integer expressible as the sum of two positive cubes in two different ways: 1729 = 1^3 + 12^3 = 9^3 + 10^3. This number was mentioned in a conversation between G.H. Hardy and Ramanujan.

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