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Is 4 a Prime Number?

Is 4 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 4 is a prime or composite is - "4 is a composite number." Now, let us find out how and why is 4 a prime number or a composite number?

Is 4 a prime number? - No
Is 4 a composite number? - Yes
Factors of 4 - 1, 2, 4
Is 4 a perfect square? - Yes
Prime Factors of 4 - 2

Is 4 a Prime or Composite?

Is 4 a Prime Number?

No, 4 is not a prime number. The number 4 is divisible by 1, 2, 4. For a number to be classified as a prime number, it should have exactly two factors. Since 4 has more than two factors, i.e. 1, 2, 4, it is not a prime number.

Is 4 a Prime Number?

Why is 4 not a Prime Number?

To understand whether 4 is prime or composite, it is important to find its factors.

Factors of 4: 1, 2, 4

Since 4 has more than 2 factors, we can say that 4 is not a prime number.

☛ Prime Number Calculator

Is 4 a Composite Number?

Yes, since 4 has more than two factors i.e. 1, 2, 4. In other words, 4 is a composite number because 4 has more than 2 factors.

Problem Statements:

Is 4 a Prime Number?	No
Is 4 a Composite Number?	Yes
Is 4 an Odd Number?	No
Is 4 a Perfect Square?	Yes
Multiples of 4	4, 8, 12, 16, 20, 24, 28, 32, 36, 40
Is 4 a Perfect Cube?	No
Square of 4	16
Square Root of 4	2
Cube Root of 4	1.5874
Is 4 an Even Number?	Yes

Fun Facts:

1 is neither prime nor composite.
Numbers X and Y are said to be coprime if they have only one common factor that is 1.
A perfect square (square number) is always a composite number.

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