One is an odd number which is neither a prime or composite number because it has only 1 factor which is itself.
The number one.
prime number
A negative one.
The probability of that one special kind of outcome.
The phone number of the Carr'S One Of A Kind Museum is: 509-489-8859.
a prime number you indiot
A composite number.
A number that has factors other than itself and one
It is a prime number which has only two factors which are itself and one
A mixed fraction.
it is equal to a whole number
If you mean what kind of element can exist as one atom, the answer is the noble gases in group 18. All elements are composed of one kind of atom, having a unique number of protons, or atomic number.