# Is 2021 a Prime Number?

Is 2021 a prime number? If a number has only two factors, i.e. 1 and the number itself, it is known as a prime number. In contrast, composite numbers have more than two factors. By this explanation, can we answer the question - is 2021 a prime number? According to the definition mentioned above, we can say * "No, 2021 is not a prime number."* Now let us take a look at the detailed solution of why is 2021 a prime number or a composite number?

**Is 2021 a prime number? -**No**Is 2021 a composite number? -**Yes**Prime Factors of 2021 -**43, 47**Factors of 2021 -**1, 43, 47, 2021**Is 2021 a perfect square? -**No

## Is 2021 a Prime Number?

No, 2021 is not a prime number. The number 2021 is divisible by 1, 43, 47, 2021. For a number to be classified as a prime number, it should have exactly two factors. Since 2021 has more than two factors, i.e. 1, 43, 47, 2021, it is not a prime number.

## Why is 2021 not a Prime Number?

To understand whether 2021 is composite or prime, it is important to find its factors.

**Factors of 2021:** 1, 43, 47, 2021

Since 2021 has more than 2 factors, we can say that 2021 is not a prime number.

## Is 2021 a Composite Number?

Yes, since 2021 has more than two factors i.e. 1, 43, 47, 2021. In other words, 2021 is a composite number because 2021 has more than 2 factors.

**Problem Statements: **

Is 2021 a Prime Number? | No |

Is 2021 a Composite Number? | Yes |

Cube Root of 2021 | 12.643122 |

Is 2021 a Perfect Cube? | No |

Is 2021 an Odd Number? | Yes |

Square of 2021 | 4084441 |

Multiples of 2021 | 2021, 4042, 6063, 8084, 10105, 12126, 14147, 16168, 18189, 20210 |

Is 2021 a Perfect Square? | No |

Is 2021 an Even Number? | No |

Square Root of 2021 | 44.955534 |

**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. - 23 is the smallest prime number having consecutive digits.
- 5 is the only prime number having the last digit as 5.

**☛ Also Check: **

- Is 77 a Prime Number? - No
- Is 57 a Prime Number? - No
- Is 63 a Prime Number? - No
- Is 56 a Prime Number? - No
- Is 143 a Prime Number? - No
- Is 421 a Prime Number? - Yes
- Is 183 a Prime Number? - No
- Is 649 a Prime Number? - No

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