Tag: Srinivasa Ramanujan

Editorial illustration of a vintage 1918 London taxicab numbered 1729 beneath a gaslamp, with the equations 1 cubed plus 12 cubed equals 9 cubed plus 10 cubed equals 1729 glowing above it, a translucent lattice-like K3 surface rising beside an open antique notebook of handwritten formulas

Why Is 1729 More Than Just Ramanujan’s Taxicab Number?

Ramanujan’s 1729 wasn’t a flash of genius — Frénicle noted it in 1657, and Ramanujan’s own 1919 deathbed notes hid a K3 surface found in 2015.

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