# Is 256 a Prime Number?

Is 256 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 256 a prime number? According to the definition mentioned above, we can say * "No, 256 is not a prime number."* Now let us take a look at the detailed solution of why is 256 a prime number or a composite number?

**Is 256 a prime number? -**No**Is 256 a composite number? -**Yes**Is 256 a perfect square? -**Yes**Factors of 256 -**1, 2, 4, 8, 16, 32, 64, 128, 256**Prime Factors of 256 -**2

## Is 256 a Prime Number?

No, 256 is not a prime number. The number 256 is divisible by 1, 2, 4, 8, 16, 32, 64, 128, 256. For a number to be classified as a prime number, it should have exactly two factors. Since 256 has more than two factors, i.e. 1, 2, 4, 8, 16, 32, 64, 128, 256, it is not a prime number.

## Why is 256 not a Prime Number?

To understand whether 256 is composite or prime, it is important to find its factors.

**Factors of 256:** 1, 2, 4, 8, 16, 32, 64, 128, 256

Since 256 has more than 2 factors, we can say that 256 is not a prime number.

## Is 256 a Composite Number?

Yes, since 256 has more than two factors i.e. 1, 2, 4, 8, 16, 32, 64, 128, 256. In other words, 256 is a composite number because 256 has more than 2 factors.

**Problem Statements: **

Is 256 a Prime Number? | No |

Is 256 a Composite Number? | Yes |

Is 256 a Perfect Cube? | No |

Cube Root of 256 | 6.349592 |

Is 256 an Odd Number? | No |

Is 256 an Even Number? | Yes |

Square of 256 | 65536 |

Multiples of 256 | 256, 512, 768, 1024, 1280, 1536, 1792, 2048, 2304, 2560 |

Square Root of 256 | 16 |

Is 256 a Perfect Square? | Yes |

**Fun Facts: **

- 23 is the smallest prime number having consecutive digits.
- 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. - 2 is the smallest prime number.

**☛ Also Check: **

- Is 59 a Prime Number? - Yes
- Is 13 a Prime Number? - Yes
- Is 133 a Prime Number? - No
- Is 33 a Prime Number? - No
- Is 100 a Prime Number? - No
- Is 211 a Prime Number? - Yes
- Is 115 a Prime Number? - No
- Is 429 a Prime Number? - No

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