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# Is 311 a Prime Number?

Is 311 a Prime Number? * "Yes, 311 is a prime number."* A number can be classified as prime or composite depending on the factors it contains; it could either have only 2 factors or more than 2 factors. Numbers like 271 with only 2 factors, i.e. 1 and 271 are called prime numbers. However, numbers like 471 with more than 2 factors are called composite numbers. Let us find out how and why is 311 a prime number?

**Is 311 a prime number? -**Yes**Is 311 a composite number? -**No**Factors of 311 -**1, 311**Prime Factors of 311 -**311**Is 311 a perfect square? -**No

## Is 311 a Prime Number?

Yes, 311 is a prime number. The number 311 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 311 has exactly two factors, i.e. 1 and 311, it is a prime number.

## How is 311 a Prime Number?

To understand whether 311 is composite or prime, it is important to find its factors.

**Factors of 311:** 1, 311

Therefore, we can say that 311 is a prime number since it has only 2 factors.

## Is 311 a Composite Number?

No, since 311 has only two factors, i.e. 1 and 311. In other words, 311 is not a composite number because 311 doesn’t have more than 2 factors.

**Problem Statements: **

Is 311 a Prime Number? | Yes |

Is 311 a Composite Number? | No |

Is 311 a Perfect Cube? | No |

Is 311 an Even Number? | No |

Square Root of 311 | 17.635192 |

Cube Root of 311 | 6.775156 |

Is 311 a Perfect Square? | No |

Multiples of 311 | 311, 622, 933, 1244, 1555, 1866, 2177, 2488, 2799, 3110 |

Is 311 an Odd Number? | Yes |

**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 - (41, 43) are twin prime numbers.
- All prime numbers don't have the last digit as 5 except the number 5.

**☛ Also Check: **

- Is 53 a Prime Number? - Yes
- Is 409 a Prime Number? - Yes
- Is 539 a Prime Number? - No
- Is 1013 a Prime Number? - Yes
- Is 421 a Prime Number? - Yes
- Is 199 a Prime Number? - Yes
- Is 311 a Prime Number? - Yes
- Is 937 a Prime Number? - Yes

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