# Is 557 a Prime Number?

Is 557 a prime number? How do you know that 557 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 557? Is 557 a prime number? * "Yes, 557 is a prime number."* Since 557 has only 2 factors i.e. 1 and 557, it is a prime number. Let's study this in detail.

**Is 557 a prime number? -**Yes**Is 557 a composite number? -**No**Factors of 557 -**1, 557**Prime Factors of 557 -**557**Is 557 a perfect square? -**No

## Is 557 a Prime Number?

Yes, 557 is a prime number. The number 557 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 557 has exactly two factors, i.e. 1 and 557, it is a prime number.

## How is 557 a Prime Number?

To understand whether 557 is composite or prime, it is important to find its factors.

**Factors of 557:** 1, 557

Therefore, we can say that 557 is a prime number since it has only 2 factors.

## Is 557 a Composite Number?

No, since 557 has only two factors, i.e. 1 and 557. In other words, 557 is not a composite number because 557 doesn’t have more than 2 factors.

**Problem Statements: **

Is 557 a Prime Number? | Yes |

Is 557 a Composite Number? | No |

Square Root of 557 | 23.600847 |

Cube Root of 557 | 8.227808 |

Multiples of 557 | 557, 1114, 1671, 2228, 2785, 3342, 3899, 4456, 5013, 5570 |

Is 557 a Perfect Cube? | No |

Is 557 a Perfect Square? | No |

Is 557 an Odd Number? | Yes |

Is 557 an Even Number? | No |

**Fun Facts: **

- A perfect cube is always a composite number.
- Numbers X and Y are said to be coprime if they have only one common factor that is 1.
- 23 is the smallest prime number having consecutive digits.

**☛ Also Check: **

- Is 36 a Prime Number? - No
- Is 65 a Prime Number? - No
- Is 99 a Prime Number? - No
- Is 54 a Prime Number? - No
- Is 137 a Prime Number? - Yes
- Is 157 a Prime Number? - Yes
- Is 115 a Prime Number? - No
- Is 1011 a Prime Number? - No

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