# Is 1321 a Prime Number?

Is 1321 a prime number? How do you know that 1321 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 1321? Is 1321 a prime number? * "Yes, 1321 is a prime number."* Since 1321 has only 2 factors i.e. 1 and 1321, it is a prime number. Let's study this in detail.

**Is 1321 a prime number? -**Yes**Is 1321 a composite number? -**No**Prime Factors of 1321 -**1321**Factors of 1321 -**1, 1321**Is 1321 a perfect square? -**No

## Is 1321 a Prime Number?

Yes, 1321 is a prime number. The number 1321 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 1321 has exactly two factors, i.e. 1 and 1321, it is a prime number.

## How is 1321 a Prime Number?

To understand whether 1321 is composite or prime, it is important to find its factors.

**Factors of 1321:** 1, 1321

Therefore, we can say that 1321 is a prime number since it has only 2 factors.

## Is 1321 a Composite Number?

No, since 1321 has only two factors, i.e. 1 and 1321. In other words, 1321 is not a composite number because 1321 doesn’t have more than 2 factors.

**Problem Statements: **

Is 1321 a Prime Number? | Yes |

Is 1321 a Composite Number? | No |

Is 1321 a Perfect Cube? | No |

Square Root of 1321 | 36.345564 |

Multiples of 1321 | 1321, 2642, 3963, 5284, 6605, 7926, 9247, 10568, 11889, 13210 |

Is 1321 an Even Number? | No |

Is 1321 a Perfect Square? | No |

Is 1321 an Odd Number? | Yes |

Cube Root of 1321 | 10.972356 |

**Fun Facts: **

- A pair of prime numbers X and Y are said to be twin prime numbers if the absolute difference between them is 2. Example - (41, 43) are twin prime numbers.
- All primes except 2 are odd.
- 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

**☛ Also Check: **

- Is 41 a Prime Number? - Yes
- Is 85 a Prime Number? - No
- Is 123 a Prime Number? - No
- Is 20 a Prime Number? - No
- Is 143 a Prime Number? - No
- Is 175 a Prime Number? - No
- Is 1003 a Prime Number? - No
- Is 941 a Prime Number? - Yes