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Is 231 a Prime Number?

Is 231 a prime number? If a number has only two factors, i.e. 1 and the number itself, it is known as a prime number. In contrast, composite numbers have more than two factors. By this explanation, can we answer the question - is 231 a prime number? According to the definition mentioned above, we can say "No, 231 is not a prime number." Now let us take a look at the detailed solution of why is 231 a prime number or a composite number?

Is 231 a prime number? - No
Is 231 a composite number? - Yes
Is 231 a perfect square? - No
Prime Factors of 231 - 3, 7, 11
Factors of 231 - 1, 3, 7, 11, 21, 33, 77, 231

Is 231 a Prime or Composite?

Is 231 a Prime Number?

No, 231 is not a prime number. The number 231 is divisible by 1, 3, 7, 11, 21, 33, 77, 231. For a number to be classified as a prime number, it should have exactly two factors. Since 231 has more than two factors, i.e. 1, 3, 7, 11, 21, 33, 77, 231, it is not a prime number.

Is 231 a Prime Number?

Why is 231 not a Prime Number?

To understand whether 231 is composite or prime, it is important to find its factors.

Factors of 231: 1, 3, 7, 11, 21, 33, 77, 231

Since 231 has more than 2 factors, we can say that 231 is not a prime number.

☛ Prime Number Calculator

Is 231 a Composite Number?

Yes, since 231 has more than two factors i.e. 1, 3, 7, 11, 21, 33, 77, 231. In other words, 231 is a composite number because 231 has more than 2 factors.

Problem Statements:

Is 231 a Prime Number?	No
Is 231 a Composite Number?	Yes
Is 231 a Perfect Cube?	No
Is 231 an Even Number?	No
Square Root of 231	15.198684
Is 231 an Odd Number?	Yes
Cube Root of 231	6.135781
Square of 231	53361
Is 231 a Perfect Square?	No
Multiples of 231	231, 462, 693, 924, 1155, 1386, 1617, 1848, 2079, 2310

Fun Facts:

23 is the smallest prime number having consecutive digits.
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.

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