# Is 225 a Prime Number?

Is 225 a prime number? * "No, 225 is not a prime number."* A number can be classified as prime or composite depending on the factors it contains; it could either have only 2 factors or more than 2 factors. Numbers like 239 with only 2 factors, i.e. 1 and 239 are called prime numbers. However, numbers like 63 with more than 2 factors are called composite numbers. Let us find out how and why is 225 a prime number or a composite number?

**Is 225 a prime number? -**No**Is 225 a composite number? -**Yes**Factors of 225 -**1, 3, 5, 9, 15, 25, 45, 75, 225**Prime Factors of 225 -**3, 5**Is 225 a perfect square? -**Yes

## Is 225 a Prime Number?

No, 225 is not a prime number. The number 225 is divisible by 1, 3, 5, 9, 15, 25, 45, 75, 225. For a number to be classified as a prime number, it should have exactly two factors. Since 225 has more than two factors, i.e. 1, 3, 5, 9, 15, 25, 45, 75, 225, it is not a prime number.

## Why is 225 not a Prime Number?

To understand whether 225 is composite or prime, it is important to find its factors.

**Factors of 225:** 1, 3, 5, 9, 15, 25, 45, 75, 225

Since 225 has more than 2 factors, we can say that 225 is not a prime number.

## Is 225 a Composite Number?

Yes, since 225 has more than two factors i.e. 1, 3, 5, 9, 15, 25, 45, 75, 225. In other words, 225 is a composite number because 225 has more than 2 factors.

**Problem Statements: **

Is 225 a Prime Number? | No |

Is 225 a Composite Number? | Yes |

Is 225 a Perfect Cube? | No |

Square Root of 225 | 15 |

Cube Root of 225 | 6.082191 |

Square of 225 | 50625 |

Is 225 a Perfect Square? | Yes |

Multiples of 225 | 225, 450, 675, 900, 1125, 1350, 1575, 1800, 2025, 2250 |

Is 225 an Even Number? | No |

Is 225 an Odd Number? | Yes |

**Fun Facts: **

- 23 is the smallest prime number having consecutive digits.
- 1 is neither prime nor composite.
- A semiprime number is a composite number that is the product of exactly two prime numbers. Example - 115 is semiprime, since 115 can be written as 5 × 23.

**☛ Also Check: **

- Is 119 a Prime Number? - No
- Is 123 a Prime Number? - No
- Is 37 a Prime Number? - Yes
- Is 39 a Prime Number? - No
- Is 38 a Prime Number? - No
- Is 359 a Prime Number? - Yes
- Is 68 a Prime Number? - No
- Is 134 a Prime Number? - No

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