# Why is 1 Neither Prime Nor Composite?

## Answer

The number one is considered neither prime nor composite because a prime number is a whole number that only has two factors, which are itself and one. A composite number has factors in addition to one and itself.
Q&A Related to "Why is 1 Neither Prime Nor Composite?"
 One is neither prime nor composite. It is known as the identity element, the unit element and unity. A prime number has exactly two factors, so 1 cannot be prime because it has only http://wiki.answers.com/Q/Why_are_0_and_1_neither_...
 One is a unit. It has only 1 positive divisor (not prime). It can't http://www.chacha.com/question/why-is-the-number-1...
 0 is not prime or composite because the definition of 'prime' or 'composite' only applies to 'natural' numbers (positive whole numbers which are greater than zero) Now 1 is not either http://answers.yahoo.com/question/index?qid=200810...
 For an integer to be prime it must be greater than 1, and the only integers that divide into it exactly are 1 and itself such as 3 and 13, etc. 0 is less than 1 so can't be prime. http://mathcentral.uregina.ca/QQ/database/QQ.09.06...
Top Related Searches
Explore this Topic
The number 1 is neither prime nor composite because it is considered a unit. A prime number has to have two factors, and a composite number has to have more than ...
The number one can not be prime because in order to be prime a number must have 2 factors, and one only has 1 factor. It also cannot be composite, because it ...
1 is neither prime nor a composite number. The number one (1). ...
About -  Privacy -  AskEraser  -  Careers -  Ask Blog -  Mobile -  Help -  Feedback © 2014 Ask.com