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.

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