# Compare 257 vs 881

Property | 257 | 881 |
---|---|---|

Type | prime | prime |

Unique factors | 1 | 1 |

Total factors | 1 | 1 |

Prime factorization | 257^{1} | 881^{1} |

Prime factorization | 257 | 881 |

Divisors count | 2 | 2 |

Divisors | 1, 257 | 1, 881 |

Number of properties | 16 | 12 |

Additive primes | 80th | |

Chen primes | 42nd | 104th |

Cousin primes (2nd member) | 37th | |

Fermat primes | 4th | |

Good primes | 20th | |

Happy primes | 33rd | |

Harmonic primes | 57th | |

Isolated primes | 22nd | |

Long primes | 21st | |

Pierpont primes | 14th | |

Primes | 55th | 152nd |

Prime triplets (1st member) | 30th | |

Prime triplets (2nd member) | 29th | |

Proth primes | 10th | |

Pythagorean primes | 25th | 74th |

Quartan primes | 4th | 7th |

Sexy primes (1st member) | 31st | 69th |

Sexy primes (2nd member) | 30th | |

Sexy prime quadrupletss (2nd member) | 5th | |

Sexy prime triplets (1st member) | 16th | |

Sexy prime triplets (2nd member) | 15th | |

Solinas primes | 31st | |

Twin primes (1st member) | 35th | |

Roman numberals | CCLVII | DCCCLXXXI |

Base 2 | 100000001_{2} | 1101110001_{2} |

Base 3 | 100112_{3} | 1012122_{3} |

Base 4 | 10001_{4} | 31301_{4} |

Base 5 | 2012_{5} | 12011_{5} |

Base 6 | 1105_{6} | 4025_{6} |

Base 7 | 515_{7} | 2366_{7} |

Base 8 | 401_{8} | 1561_{8} |

Base 9 | 315_{9} | 1178_{9} |

Base 10 | 257_{10} | 881_{10} |

Base 11 | 214_{11} | 731_{11} |

Base 12 | 195_{12} | 615_{12} |

Base 13 | 16a_{13} | 52a_{13} |

Base 14 | 145_{14} | 46d_{14} |

Base 15 | 122_{15} | 3db_{15} |

Base 16 | 101_{16} | 371_{16} |