Question of The Day19-09-2022

# Is 1 a Prime Number or a composite Number?

Correct Answer : c ) Neither Prime nor Composite

Explanation :

Number 1 is the first positive integer and the question of whether 1 is a prime number or 1 is a composite number has a variety of answers and reasons from people all over the world. The correct answer is that 1 is neither a prime number nor a composite number.

Let us check with the answers of why or why not 1 is a prime number or a composite number.

## What are the factors of 1?

Number one has only one positive factor, i.e., 1 itself. There is no other positive factor of number one.

Now, let us understand the reasons- why 1 is not a prime number and why 1 is not a composite number.

## Why is 1 not a Prime Number?

As per the definition of Prime Numbers, a number is called a prime number if and only if it has two distinct positive factors.

As 1 has only one positive factor so, 1 is not a prime number.

## Why is 1 not a Composite Number?

As per the definition of Composite Numbers, a number is called a composite number if and only if it has more than two distinct positive factors.

As 1 has only one positive factor and it does not satisfy the definition of composite numbers so, 1 is not a composite number.

Hence, (c) is the correct answer.

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