cannonball problem

短语

释义与例句

name
  1. 1.

    The challenge of proving that the only solution of the Diophantine equation :∑ₙ₌₁ᴺn²=M²; with N > 1 is when N = 24 and M = 70.

    数学

词源

It can be visualized as the problem of taking a square arrangement of cannonballs on the ground and building a square pyramid out of them.

来源：wiktionary