# 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 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.

## 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.

## 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 n
^{2}+ 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.

**☛ Also Check: **

- Is 26 a Prime Number? - No
- Is 27 a Prime Number? - No
- Is 91 a Prime Number? - No
- Is 55 a Prime Number? - No
- Is 23 a Prime Number? - Yes
- Is 110 a Prime Number? - No
- Is 68 a Prime Number? - No
- Is 439 a Prime Number? - Yes

visual curriculum