# Compare 131 vs 191

Property | 131 | 191 |
---|---|---|

Type | prime | prime |

Unique factors | 1 | 1 |

Total factors | 1 | 1 |

Prime factorization | 131^{1} | 191^{1} |

Prime factorization | 131 | 191 |

Divisors count | 2 | 2 |

Divisors | 1, 131 | 1, 191 |

Number of properties | 12 | 16 |

Additive primes | 17th | 24th |

Chen primes | 26th | 34th |

Class 1+ primes | 14th | |

Cousin primes (2nd member) | 12th | |

Good primes | 16th | |

Harmonic primes | 15th | |

Isolated primes | 13th | |

Long primes | 12th | |

Multiplicative primes | 10th | |

Palindromic primes | 7th | 10th |

Pierpont primes of the 2nd kind | 14th | |

Primes | 32nd | 43rd |

Prime quadruplets (1st member) | 4th | |

Prime triplets (1st member) | 13th | |

Sexy primes (1st member) | 20th | 25th |

Solinas primes | 23rd | 25th |

Sophie germain primes | 12th | 15th |

Super primes | 14th | |

Thabit primes | 6th | |

Twin primes (1st member) | 14th | |

Ulam primes | 8th | |

Roman numberals | CXXXI | CXCI |

Base 2 | 10000011_{2} | 10111111_{2} |

Base 3 | 11212_{3} | 21002_{3} |

Base 4 | 2003_{4} | 2333_{4} |

Base 5 | 1011_{5} | 1231_{5} |

Base 6 | 335_{6} | 515_{6} |

Base 7 | 245_{7} | 362_{7} |

Base 8 | 203_{8} | 277_{8} |

Base 9 | 155_{9} | 232_{9} |

Base 10 | 131_{10} | 191_{10} |

Base 11 | 10a_{11} | 164_{11} |

Base 12 | ab_{12} | 13b_{12} |

Base 13 | a1_{13} | 119_{13} |

Base 14 | 95_{14} | d9_{14} |

Base 15 | 8b_{15} | cb_{15} |

Base 16 | 83_{16} | bf_{16} |