Is 2 a Prime Number?

Is number 2 a prime number or not? Since the number two is an even number, many believe that 2 is not a prime number. But, 2 is a very special number!


So, 2 is a Prime Number or Not?

Yes, 2 is a prime number. According to the definition of prime numbers, any whole number which has only 2 factors is known as a prime number. Now, the factors of 2 are 1 and 2. Since there are exactly two factors of 2, it is a prime number.

Lesson Highlights:

Is 2 a prime number? Yes, 2 is a prime number.
Can 2 be considered a composite number? No, 2 is not a composite number as it has exactly two factors.
What are the factors of 2? Factors of 2 are 1 and 2.
What is the smallest prime number? 2 is the smallest prime number.
Which number is the only even prime number? 2 is the only even prime number.

The Smallest and The Only Even Prime Number!

It is interesting to note that the number 2 is the smallest integer that satisfies the condition of prime numbers. Another interesting thing to note about the number 2 is that it is the only prime number which is an even number. This is because all the even numbers are divisible by 2.

Try it Yourself: Prime Numbers Calculator

Is 2 a Composite Number?

For a number to be a composite number, it should have more than 2 factors. But, the number 2 has only two factors i.e. 1 and 2. Hence, 2 is not considered as a composite number.

So, What Kind of Number is 2?

Below are some of the categories in which number 2 falls:

  • A natural number
  • A positive integer
  • A prime number
  • An even number
  • A rational number
  • A whole number


  • 2 is the smallest prime number
  • 2 is the only even prime number
  • 2 is the smallest even number

Check: How to Find Prime Numbers

Similar Questions:

  1. Is 1 a Prime Number?
  2. Is 91 a Prime Number?
  3. Is 101 a Prime Number?

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