A German mathematician Christian Goldbach (1690-1764) stated that every odd composite number can be written as a sum of a prime and twice a square.
Some examples:
9 = 7 + 2*12
21 = 3 + 2*32
25 = 7 + 2*32
33 = 31 +2*12
Now we know that his conjecture is false.
What is the smallest odd composite number not complying with
C.G.'s conjecture?
 |
All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars |
