# Is 129 a Prime Number?

Is 129 a prime number? A prime number is divisible only by 1 and itself, which means it has no other divisor except 1 and the number itself. On the contrary, composite numbers have more than two factors. To determine if 129 is a prime number or composite, we need to divide it with numbers from 1 to 129. To find out the answer to this question * "is 129 is a prime number"* and to gain a detailed understanding of

*Let's learn more.*

**"how and why is 129 a prime number or a composite number?"****Is 129 a prime number? -**No**Is 129 a composite number? -**Yes**Is 129 a perfect square? -**No**Factors of 129 -**1, 3, 43, 129**Prime Factors of 129 -**3, 43

## Is 129 a Prime Number?

No, 129 is not a prime number. The number 129 is divisible by 1, 3, 43, 129. For a number to be classified as a prime number, it should have exactly two factors. Since 129 has more than two factors, i.e. 1, 3, 43, 129, it is not a prime number.

## Why is 129 not a Prime Number?

To understand whether 129 is composite or prime, it is important to find its factors.

**Factors of 129:** 1, 3, 43, 129

Since 129 has more than 2 factors, we can say that 129 is not a prime number.

## Is 129 a Composite Number?

Yes, since 129 has more than two factors i.e. 1, 3, 43, 129. In other words, 129 is a composite number because 129 has more than 2 factors.

**Problem Statements: **

Is 129 a Prime Number? | No |

Is 129 a Composite Number? | Yes |

Square of 129 | 16641 |

Is 129 an Even Number? | No |

Is 129 a Perfect Cube? | No |

Cube Root of 129 | 5.052766 |

Is 129 an Odd Number? | Yes |

Is 129 a Perfect Square? | No |

Square Root of 129 | 11.357817 |

Multiples of 129 | 129, 258, 387, 516, 645, 774, 903, 1032, 1161, 1290 |

**Fun Facts: **

- All primes except 2 are odd.
- A pair of prime numbers X and Y are said to be twin prime numbers if the absolute difference between them is 2. Example - (311, 313) are twin prime numbers.
- A palindrome prime is a prime number that when read in reverse order results in the same number. Examples - 10601, 11311, 12421

**☛ Also Check: **

- Is 54 a Prime Number? - No
- Is 59 a Prime Number? - Yes
- Is 7 a Prime Number? - Yes
- Is 33 a Prime Number? - No
- Is 22 a Prime Number? - No
- Is 509 a Prime Number? - Yes
- Is 397 a Prime Number? - Yes
- Is 279 a Prime Number? - No

visual curriculum