Is 2 A Prime Or Composite Number? - Cuemath

Is 2 a Prime Number?

Is 2 a prime number? Numbers having only 2 factors, i.e. 1 and the number itself are known as prime numbers whereas numbers with more than 2 factors are known as composite. The answer to the question whether 2 is a prime or composite is - "2 is a prime number." Now, let us find out how and why is 2 a prime number or a composite number?

• Is 2 a prime number? - Yes
• Is 2 a composite number? - No
• Is 2 a perfect square? - No
• Prime Factors of 2 - 2
• Factors of 2 - 1, 2

Is 2 a Prime Number?

Yes, 2 is a prime number. The number 2 is divisible only by 1 and the number itself. For a number to be classified as a prime number, it should have exactly two factors. Since 2 has exactly two factors, i.e. 1 and 2, it is a prime number.

How is 2 a Prime Number?

To understand whether 2 is prime or composite, it is important to find its factors.

Factors of 2: 1, 2

Therefore, we can say that 2 is a prime number since it has only 2 factors.

☛ Prime Number Calculator

Is 2 a Composite Number?

No, since 2 has only two factors, i.e. 1 and 2. In other words, 2 is not a composite number because 2 doesn’t have more than 2 factors.

Problem Statements:

Is 2 a Prime Number?	Yes
Is 2 a Composite Number?	No
Multiples of 2	2, 4, 6, 8, 10, 12, 14, 16, 18, 20
Is 2 an Even Number?	Yes
Is 2 an Odd Number?	No
Cube Root of 2	1.259921
Square Root of 2	1.414214
Is 2 a Perfect Cube?	No
Is 2 a Perfect Square?	No

Fun Facts:

• 1 is neither prime nor composite.
• Prime numbers greater than 5 can be represented in the form of either 6n + 1 or 6n - 1. Example - 149 is a prime number and it can be written as 149 = 6 × 25 - 1
• Numbers X and Y are said to be coprime if they have only one common factor that is 1.

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