Wednesday, February 23, 2011

Polite number

In number theory, a polite number is a positive integer that can be written as the sum of two or more consecutive positive integers. Other positive integers are impolite...

For example,
6 = 1 + 2 + 3, 18 = 3 + 4 + 5 + 6, 41= 20 + 21 are all polite.

On the other hand 8 is not polite so is called an impolite number.






Is every odd number greater than one polite? Why?

No comments:

Post a Comment