# Is 39 a Prime Number?

Is 39 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 39 is a prime or composite is - * "39 is a composite number."* Now, let us find out how and why is 39 a prime number or a composite number?

**Is 39 a prime number? -**No**Is 39 a composite number? -**Yes**Is 39 a perfect square? -**No**Prime Factors of 39 -**3, 13**Factors of 39 -**1, 3, 13, 39

## Is 39 a Prime Number?

No, 39 is not a prime number. The number 39 is divisible by 1, 3, 13, 39. For a number to be classified as a prime number, it should have exactly two factors. Since 39 has more than two factors, i.e. 1, 3, 13, 39, it is not a prime number.

## Why is 39 not a Prime Number?

To understand whether 39 is prime or composite, it is important to find its factors.

**Factors of 39:** 1, 3, 13, 39

Since 39 has more than 2 factors, we can say that 39 is not a prime number.

## Is 39 a Composite Number?

Yes, since 39 has more than two factors i.e. 1, 3, 13, 39. In other words, 39 is a composite number because 39 has more than 2 factors.

**Problem Statements: **

Is 39 a Prime Number? | No |

Is 39 a Composite Number? | Yes |

Is 39 a Perfect Cube? | No |

Is 39 an Even Number? | No |

Multiples of 39 | 39, 78, 117, 156, 195, 234, 273, 312, 351, 390 |

Square Root of 39 | 6.244998 |

Square of 39 | 1521 |

Is 39 a Perfect Square? | No |

Cube Root of 39 | 3.391207 |

Is 39 an Odd Number? | Yes |

**Fun Facts: **

- Euler discovered a polynomial n
^{2}+ n + 41 that produces prime numbers for values of n that lie between 0 and 39 inclusive. It can generate 40 prime numbers for 0 <= n <= 39. - A perfect square (square number) is always a composite number.
- 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.

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