Fait général: 1729 is the smallest number representable in two different ways as a sum of two positive cubes, as Ramanujan stated on the spot.
Fait mathématique: 1729 is the smallest natural number representable in two different ways as a sum of two positive cubes, as Ramanujan stated on the spot.
Culture générale: 1729 is the smallest number representable in two different ways as a sum of two positive cubes, as Ramanujan stated on the spot.
Date historique: September 24th is the day in 1877 that Battle of Shiroyama, decisive victory of the Imperial Japanese Army over the Satsuma Rebellion.