# Is 57 a Prime Number?

Is 57 a prime number? A prime number is divisible only by 1 and itself, which means it has no other divisor except 1 and the number itself. On the contrary, composite numbers have more than two factors. To determine if 57 is a prime number or composite, we need to divide it with numbers from 1 to 57. To find out the answer to this question * "is 57 is a prime number"* and to gain a detailed understanding of

*Let's learn more.*

**"how and why is 57 a prime number or a composite number?"****Is 57 a prime number? -**No**Is 57 a composite number? -**Yes**Is 57 a perfect square? -**No**Factors of 57 -**1, 3, 19, 57**Prime Factors of 57 -**3, 19

## Is 57 a Prime Number?

No, 57 is not a prime number. The number 57 is divisible by 1, 3, 19, 57. For a number to be classified as a prime number, it should have exactly two factors. Since 57 has more than two factors, i.e. 1, 3, 19, 57, it is not a prime number.

## Why is 57 not a Prime Number?

To understand whether 57 is composite or prime, it is important to find its factors.

**Factors of 57:** 1, 3, 19, 57

Since 57 has more than 2 factors, we can say that 57 is not a prime number.

## Is 57 a Composite Number?

Yes, since 57 has more than two factors i.e. 1, 3, 19, 57. In other words, 57 is a composite number because 57 has more than 2 factors.

**Problem Statements: **

Is 57 a Prime Number? | No |

Is 57 a Composite Number? | Yes |

Is 57 an Even Number? | No |

Multiples of 57 | 57, 114, 171, 228, 285, 342, 399, 456, 513, 570 |

Cube Root of 57 | 3.848496 |

Square of 57 | 3249 |

Square Root of 57 | 7.549834 |

Is 57 a Perfect Cube? | No |

Is 57 a Perfect Square? | No |

Is 57 an Odd Number? | Yes |

**Fun Facts: **

- A perfect square (square number) is always a composite number.
- A semiprime number is a composite number that is the product of exactly two prime numbers. Example - 611 is semiprime, since 611 can be written as 13 × 47.
- 23 is the smallest prime number having consecutive digits.

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