# Is 139 a Prime Number?

Is 139 a prime number? How do you know that 139 is prime or composite? Let us first understand what makes a number 'prime'. If a number has only 2 factors (1 and the number itself), then it is a prime number. If the number has more than 2 factors, then it is composite. Now, what do you think of 139? Is 139 a prime number? * "Yes, 139 is a prime number."* Since 139 has only 2 factors i.e. 1 and 139, it is a prime number. Let's study this in detail.

**Is 139 a prime number? -**Yes**Is 139 a composite number? -**No**Is 139 a perfect square? -**No**Factors of 139 -**1, 139**Prime Factors of 139 -**139

## Is 139 a Prime Number?

Yes, 139 is a prime number. The number 139 is divisible only by 1 and the number itself. For a number to be classified as a prime number, it should have exactly two factors. Since 139 has exactly two factors, i.e. 1 and 139, it is a prime number.

## How is 139 a Prime Number?

To understand whether 139 is prime or composite, it is important to find its factors.

**Factors of 139:** 1, 139

Therefore, we can say that 139 is a prime number since it has only 2 factors.

## Is 139 a Composite Number?

No, since 139 has only two factors, i.e. 1 and 139. In other words, 139 is not a composite number because 139 doesn’t have more than 2 factors.

**Problem Statements: **

Is 139 a Prime Number? | Yes |

Is 139 a Composite Number? | No |

Multiples of 139 | 139, 278, 417, 556, 695, 834, 973, 1112, 1251, 1390 |

Is 139 an Even Number? | No |

Is 139 a Perfect Cube? | No |

Is 139 a Perfect Square? | No |

Square Root of 139 | 11.789826 |

Cube Root of 139 | 5.180093 |

Is 139 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.
- Prime numbers greater than 5 can be represented in the form of either 6n + 1 or 6n - 1. Example - 89 is a prime number and it can be written as 89 = 6 × 15 - 1
- A perfect cube is always a composite number.

**☛ Also Check: **

- Is 881 a Prime Number? - Yes
- Is 713 a Prime Number? - No
- Is 39 a Prime Number? - No
- Is 171 a Prime Number? - No
- Is 170 a Prime Number? - No
- Is 213 a Prime Number? - No
- Is 185 a Prime Number? - No
- Is 95 a Prime Number? - No

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