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Is 87 a Prime Number?

Is 87 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 87 is a prime or composite is - "87 is a composite number." Now, let us find out how and why is 87 a prime number or a composite number?

Is 87 a prime number? - No
Is 87 a composite number? - Yes
Prime Factors of 87 - 3, 29
Factors of 87 - 1, 3, 29, 87
Is 87 a perfect square? - No

Is 87 a Prime or Composite?

Is 87 a Prime Number?

No, 87 is not a prime number. The number 87 is divisible by 1, 3, 29, 87. For a number to be classified as a prime number, it should have exactly two factors. Since 87 has more than two factors, i.e. 1, 3, 29, 87, it is not a prime number.

Is 87 a Prime Number?

Why is 87 not a Prime Number?

To understand whether 87 is prime or composite, it is important to find its factors.

Factors of 87: 1, 3, 29, 87

Since 87 has more than 2 factors, we can say that 87 is not a prime number.

☛ Prime Number Calculator

Is 87 a Composite Number?

Yes, since 87 has more than two factors i.e. 1, 3, 29, 87. In other words, 87 is a composite number because 87 has more than 2 factors.

Problem Statements:

Is 87 a Prime Number?	No
Is 87 a Composite Number?	Yes
Is 87 a Perfect Cube?	No
Is 87 a Perfect Square?	No
Is 87 an Odd Number?	Yes
Cube Root of 87	4.431041
Is 87 an Even Number?	No
Square of 87	7569
Multiples of 87	87, 174, 261, 348, 435, 522, 609, 696, 783, 870
Square Root of 87	9.327379

Fun Facts:

5 is the only prime number having the last digit as 5.
Euler discovered a polynomial n² + n + 41 that produces prime numbers for values of n that lie between 0 and 39 inclusive. It can generate 40 prime numbers for 0 <= n <= 39.
23 is the smallest prime number having consecutive digits.

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