# Is 491 a Prime Number?

Is 491 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 491 is a prime or composite is - * "491 is a prime number."* Now, let us find out how and why is 491 a prime number or a composite number?

**Is 491 a prime number? -**Yes**Is 491 a composite number? -**No**Is 491 a perfect square? -**No**Factors of 491 -**1, 491**Prime Factors of 491 -**491

## Is 491 a Prime Number?

Yes, 491 is a prime number. The number 491 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 491 has exactly two factors, i.e. 1 and 491, it is a prime number.

## How is 491 a Prime Number?

To understand whether 491 is prime or composite, it is important to find its factors.

**Factors of 491:** 1, 491

Therefore, we can say that 491 is a prime number since it has only 2 factors.

## Is 491 a Composite Number?

No, since 491 has only two factors, i.e. 1 and 491. In other words, 491 is not a composite number because 491 doesn’t have more than 2 factors.

**Problem Statements: **

Is 491 a Prime Number? | Yes |

Is 491 a Composite Number? | No |

Is 491 an Odd Number? | Yes |

Is 491 an Even Number? | No |

Square Root of 491 | 22.158520 |

Multiples of 491 | 491, 982, 1473, 1964, 2455, 2946, 3437, 3928, 4419, 4910 |

Is 491 a Perfect Cube? | No |

Cube Root of 491 | 7.889078 |

Is 491 a Perfect Square? | No |

**Fun Facts: **

- Numbers X and Y are said to be coprime if they have only one common factor that is 1.
- 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 semiprime number is a composite number that is the product of exactly two prime numbers. Example - 697 is semiprime, since 697 can be written as 17 × 41.

**☛ Also Check: **

- Is 56 a Prime Number? - No
- Is 10 a Prime Number? - No
- Is 5 a Prime Number? - Yes
- Is 51 a Prime Number? - No
- Is 131 a Prime Number? - Yes
- Is 503 a Prime Number? - Yes
- Is 82 a Prime Number? - No
- Is 1073 a Prime Number? - No

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