## Is 90 Prime Number or Composite Number

## Is 90 a Prime Number?

### No – 90 is not a Prime Number.

**Why No: **90 is not a prime number because it does not meet the prime criteria of having exactly two distinct positive divisors: 1 and itself. Check if any number is prime or not

**Is 90 a Composite Number?**

### Yes – 90 is a Composite Number.

**Why Yes: **90 is a composite number because it has more than two distinct positive divisors. It is divisible by 1, 2, 3, 5, 9, 10, 18, 30, 45, and itself (90).

**Problem Statements**

Property | Answer |
---|---|

Is 90 a prime number? | No |

Is 90 a composite number? | Yes |

Is 90 a perfect square? | No |

Factors of 90 | 1, 2, 3, 5, 9, 10, 18, 30, 45, 90 |

Multiples of 90 | 90, 180, 270, 360, 450, 540, 630, 720, 810, 900 |

Cube Root of 90 | 4.481 |

Square of 90 | 8100 |

Square Root of 90 | 9.487 |

Is 90 a Perfect Cube? | No |

Is 90 an Irrational number | No |

Is 90 a Rational number | Yes |

Is 90 a Real number | Yes |

Is 90 an Integer | Yes |

Is 90 a Natural number | Yes |

Is 90 a Whole number | Yes |

Is 90 an Even or odd number | No (90 is an even number) |

Is 90 an Ordinal number | Yes |

Is 90 a Complex number | Yes (as all real numbers are also complex numbers) |

**What are the factors of 90?**

The factors of 90 are 1, 2, 3, 5, 9, 10, 18, 30, 45, and 90. This variety of factors confirms that 90 is a composite number. Unlike a prime number, which is divisible only by 1 and itself, 90’s wide range of divisibility showcases its composite nature.

**What Kind of Number is 90?**

90 is categorized as a composite number because it has more than two distinct positive divisors: 1, 2, 3, 5, 9, 10, 18, 30, 45, and itself.

- 90 is an even number, distinguishing it in various numerical contexts.
- As a composite number, 90’s unique properties and wide range of factors make it a subject of interest in mathematical discussions.
- It is a natural number and a positive integer, reflecting its place in the realm of whole numbers.
- 90’s status as a rational number further categorizes it within the spectrum of real numbers, which are also considered complex numbers by definition.

**Nearest Prime Number to 90**

The nearest prime numbers to 90 are 89 and 97. 89 is the closest prime number less than 90, and 97 is the closest prime number greater than 90