Speakur

Word Pronunciation & Dictionary

cannonball problem

Word Rarity Rare

Frequency: Zipf frequency 2.87 in modern English

Syllables
can-non-bal-l prob-lem
IPA
27
Scrabble Score
17
Letters
5
Syllables
10
Unique Chars

Meaning

name

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.

Etymology

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.

Questions

What does cannonball problem mean?
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.
Where does cannonball problem come from?
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.

How to pronounce cannonball problem

  1. Open the pronunciation page — Open the Speakur entry for “cannonball problem”.
  2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “cannonball problem”.
  4. Repeat and practice — Say “cannonball problem” aloud, matching stress and vowels until it feels natural.