top | item 27935383 (no title) FreeRadical | 4 years ago 1729 was also Ramanujan’s taxi numberhttps://mathworld.wolfram.com/Hardy-RamanujanNumber.html discuss order hn newest dhosek|4 years ago This is how I remember that 1728 = 12³. I remember getting puzzled looks from classmates in my elliptic curves class first when I was able to provide 12³ without a moment's delay and then again when I explained why I knew that. paulpauper|4 years ago it's because 12^3 differs from 1729 by just 1, making the error very small when using series
dhosek|4 years ago This is how I remember that 1728 = 12³. I remember getting puzzled looks from classmates in my elliptic curves class first when I was able to provide 12³ without a moment's delay and then again when I explained why I knew that.
paulpauper|4 years ago it's because 12^3 differs from 1729 by just 1, making the error very small when using series
dhosek|4 years ago
paulpauper|4 years ago