# Compare 31 vs 109

Property | 31 | 109 |
---|---|---|

Type | prime | prime |

Unique factors | 1 | 1 |

Total factors | 1 | 1 |

Prime factorization | 31^{1} | 109^{1} |

Prime factorization | 31 | 109 |

Divisors count | 2 | 2 |

Divisors | 1, 31 | 1, 109 |

Number of properties | 18 | 19 |

Centered decagonal primes | 2nd | |

Centered triangular primes | 2nd | 3rd |

Chen primes | 11th | 23rd |

Class 1+ primes | 8th | |

Cousin primes (1st member) | 11th | |

Cuban primes 2 | 2nd | |

Emirps | 3rd | |

Euclid primes | 4th | |

Happy primes | 5th | 9th |

Long primes | 10th | |

Lucky primes | 4th | |

Mersenne primes | 3rd | |

Multiplicative primes | 7th | |

Pierpont primes | 11th | |

Pierpont primes of the 2nd kind | 8th | |

Primes | 11th | 29th |

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

Prime quintuplet 1s (5th member) | 2nd | |

Prime quintuplet 2s (4th member) | 3rd | |

Prime sextuplets (5th member) | 2nd | |

Prime triplets (2nd member) | 12th | |

Prime triplets (3rd member) | 11th | |

Pythagorean primes | 13th | |

Right-truncatable primes | 7th | |

Sexy primes (1st member) | 7th | |

Sexy primes (2nd member) | 18th | |

Sexy prime triplets (1st member) | 5th | |

Sexy prime triplets (3rd member) | 10th | |

Solinas primes | 10th | |

Super primes | 5th | 10th |

Twin primes (2nd member) | 5th | 10th |

Roman numberals | XXXI | CIX |

Base 2 | 11111_{2} | 1101101_{2} |

Base 3 | 1011_{3} | 11001_{3} |

Base 4 | 133_{4} | 1231_{4} |

Base 5 | 111_{5} | 414_{5} |

Base 6 | 51_{6} | 301_{6} |

Base 7 | 43_{7} | 214_{7} |

Base 8 | 37_{8} | 155_{8} |

Base 9 | 34_{9} | 131_{9} |

Base 10 | 31_{10} | 109_{10} |

Base 11 | 29_{11} | 9a_{11} |

Base 12 | 27_{12} | 91_{12} |

Base 13 | 25_{13} | 85_{13} |

Base 14 | 23_{14} | 7b_{14} |

Base 15 | 21_{15} | 74_{15} |

Base 16 | 1f_{16} | 6d_{16} |