The only even prime number is 2.
It is then a composite number with the exception of 1 which is not a prime or a composite number
a prime square
Prime. The only factors of a prime number are 1 and the number.
A mirror prime.
There is no name for numbers which are neither prime nor composite.
a prime factor
103 is a prime number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 have a different name.
This is called a prime number.