# Is 423 a Prime Number?

Is 423 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 423 is a prime or composite is - * "423 is a composite number."* Now, let us find out how and why is 423 a prime number or a composite number?

**Is 423 a prime number? -**No**Is 423 a composite number? -**Yes**Is 423 a perfect square? -**No**Factors of 423 -**1, 3, 9, 47, 141, 423**Prime Factors of 423 -**3, 47

## Is 423 a Prime Number?

No, 423 is not a prime number. The number 423 is divisible by 1, 3, 9, 47, 141, 423. For a number to be classified as a prime number, it should have exactly two factors. Since 423 has more than two factors, i.e. 1, 3, 9, 47, 141, 423, it is not a prime number.

## Why is 423 not a Prime Number?

To understand whether 423 is composite or prime, it is important to find its factors.

**Factors of 423:** 1, 3, 9, 47, 141, 423

Since 423 has more than 2 factors, we can say that 423 is not a prime number.

## Is 423 a Composite Number?

Yes, since 423 has more than two factors i.e. 1, 3, 9, 47, 141, 423. In other words, 423 is a composite number because 423 has more than 2 factors.

**Problem Statements: **

Is 423 a Prime Number? | No |

Is 423 a Composite Number? | Yes |

Multiples of 423 | 423, 846, 1269, 1692, 2115, 2538, 2961, 3384, 3807, 4230 |

Square Root of 423 | 20.566964 |

Is 423 a Perfect Cube? | No |

Is 423 an Even Number? | No |

Square of 423 | 178929 |

Is 423 a Perfect Square? | No |

Cube Root of 423 | 7.506646 |

Is 423 an Odd Number? | Yes |

**Fun Facts: **

- Numbers X and Y are said to be coprime if they have only one common factor that is 1.
- 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 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 21 a Prime Number? - No
- Is 89 a Prime Number? - Yes
- Is 56 a Prime Number? - No
- Is 2021 a Prime Number? - No
- Is 43 a Prime Number? - Yes
- Is 102 a Prime Number? - No
- Is 223 a Prime Number? - Yes
- Is 703 a Prime Number? - No

visual curriculum