# Compare 181 vs 197

Property | 181 | 197 |
---|---|---|

Type | prime | prime |

Unique factors | 1 | 1 |

Total factors | 1 | 1 |

Prime factorization | 181^{1} | 197^{1} |

Prime factorization | 181 | 197 |

Divisors count | 2 | 2 |

Divisors | 1, 181 | 1, 197 |

Number of properties | 8 | 13 |

Additive primes | 26th | |

Centered heptagonal primes | 3rd | |

Centered square primes | 6th | |

Chen primes | 33rd | 35th |

Cousin primes (2nd member) | 14th | |

Dihedral primes | 5th | |

Left-truncatable primes | 20th | |

Long primes | 16th | |

Palindromic primes | 9th | |

Primes | 42nd | 45th |

Prime quadruplets (3rd member) | 4th | |

Prime triplets (2nd member) | 14th | |

Prime triplets (3rd member) | 13th | |

Pythagorean primes | 19th | 21st |

Sexy primes (2nd member) | 25th | |

Twin primes (1st member) | 15th | |

Twin primes (2nd member) | 13th | |

Ulam primes | 9th | |

Roman numberals | CLXXXI | CXCVII |

Base 2 | 10110101_{2} | 11000101_{2} |

Base 3 | 20201_{3} | 21022_{3} |

Base 4 | 2311_{4} | 3011_{4} |

Base 5 | 1211_{5} | 1242_{5} |

Base 6 | 501_{6} | 525_{6} |

Base 7 | 346_{7} | 401_{7} |

Base 8 | 265_{8} | 305_{8} |

Base 9 | 221_{9} | 238_{9} |

Base 10 | 181_{10} | 197_{10} |

Base 11 | 155_{11} | 16a_{11} |

Base 12 | 131_{12} | 145_{12} |

Base 13 | 10c_{13} | 122_{13} |

Base 14 | cd_{14} | 101_{14} |

Base 15 | c1_{15} | d2_{15} |

Base 16 | b5_{16} | c5_{16} |