Why is 1 not a prime nor a composite number?

Question

Answer

1 not a Prime nor Composite Number

Prime Numbers:

Prime numbers are numbers that are greater than 1 and have only two factors - 1 and the number itself.
Since 1 has only one factor (itself), it does not meet the definition of a prime number.

Composite Numbers:

Composite numbers are numbers that have more than two factors, including 1 and the number itself.
1 only has one factor (itself), so it does not fit the definition of a composite number either.

Unique Nature of 1:

1 is a unique number that is neither prime nor composite.
It stands alone as a unit and does not fit into the categories of prime or composite numbers.