In the past, it used to be listed as a Prime number; more recently, it isn't. The number one has a special role as the identity element of multiplication. One problem if it were defined as a prime number is that the prime factors of a number would no longer be unique. For example, 6 = 2 x 3 = 2 x 3 x 1 = 2 x 3 x 1 x 1 etc. There are several additional arguments, both for and against considering one a prime number, but most modern mathematicians seem to consider it more consistent NOT to consider one a prime number.
It is 1 that is neither a prime or a composite number The number 1 is neither prime nor composite.
The number 1 is neither a prime nor a composite number.
0 and 1 are neither prime nor composite.
The number 1 is neither composite nor prime.
1 is neither prime nor composite.
It is 1 that is neither a prime or a composite number The number 1 is neither prime nor composite.
The number 1 is neither a prime nor a composite number.
1 is the counting number that is neither a prime number nor a composite number.
0 and 1 are neither prime nor composite.
The number 1 is neither composite nor prime.
The number '1' is neither prime nor composite.
1 is neither prime nor a composite number.The number one (1).
1 is not considered to be a prime or a composite number
1 is neither prime nor composite.
There is no special name for it. It is simply neither prime nor composite.
It is neither prime nor composite.
1