# Is 531 a Prime Number?

Is 531 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 531 a prime number? According to the definition mentioned above, we can say * "No, 531 is not a prime number."* Now let us take a look at the detailed solution of why is 531 a prime number or a composite number?

**Is 531 a prime number? -**No**Is 531 a composite number? -**Yes**Prime Factors of 531 -**3, 59**Factors of 531 -**1, 3, 9, 59, 177, 531**Is 531 a perfect square? -**No

## Is 531 a Prime Number?

No, 531 is not a prime number. The number 531 is divisible by 1, 3, 9, 59, 177, 531. For a number to be classified as a prime number, it should have exactly two factors. Since 531 has more than two factors, i.e. 1, 3, 9, 59, 177, 531, it is not a prime number.

## Why is 531 not a Prime Number?

To understand whether 531 is prime or composite, it is important to find its factors.

**Factors of 531:** 1, 3, 9, 59, 177, 531

Since 531 has more than 2 factors, we can say that 531 is not a prime number.

## Is 531 a Composite Number?

Yes, since 531 has more than two factors i.e. 1, 3, 9, 59, 177, 531. In other words, 531 is a composite number because 531 has more than 2 factors.

**Problem Statements: **

Is 531 a Prime Number? | No |

Is 531 a Composite Number? | Yes |

Is 531 a Perfect Square? | No |

Square Root of 531 | 23.043437 |

Square of 531 | 281961 |

Is 531 a Perfect Cube? | No |

Cube Root of 531 | 8.097742 |

Is 531 an Odd Number? | Yes |

Multiples of 531 | 531, 1062, 1593, 2124, 2655, 3186, 3717, 4248, 4779, 5310 |

Is 531 an Even Number? | No |

**Fun Facts: **

- 1 is neither prime nor composite.
- 2 is the smallest prime number.
- 5 is the only prime number having the last digit as 5.

**☛ Also Check: **

- Is 113 a Prime Number? - Yes
- Is 289 a Prime Number? - No
- Is 73 a Prime Number? - Yes
- Is 221 a Prime Number? - No
- Is 79 a Prime Number? - Yes
- Is 347 a Prime Number? - Yes
- Is 451 a Prime Number? - No
- Is 559 a Prime Number? - No

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