# Compare 15 vs 53

Property | 15 | 53 |
---|---|---|

Type | semiprime | prime |

Unique factors | 2 | 1 |

Total factors | 2 | 1 |

Prime factorization | 3^{1} × 5^{1} | 53^{1} |

Prime factorization | 3 × 5 | 53 |

Divisors count | 4 | 2 |

Divisors | 1, 3, 5, 15 | 1, 53 |

Number of properties | 1 | 18 |

Chen primes | 15th | |

Class 1+ primes | 10th | |

Good primes | 7th | |

Isolated primes | 5th | |

Left-truncatable primes | 11th | |

Pierpont primes of the 2nd kind | 10th | |

Primes | 16th | |

Pythagorean primes | 7th | |

Restricted right-truncatable primes | 1st | |

Right-truncatable primes | 9th | |

Semiprimes | 6th | |

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

Sexy primes (2nd member) | 10th | |

Sexy prime quadrupletss (3rd member) | 3rd | |

Sexy prime triplets (2nd member) | 7th | |

Sexy prime triplets (3rd member) | 6th | |

Sophie germain primes | 8th | |

Two-sided primes | 7th | |

Ulam primes | 6th | |

Roman numberals | XV | LIII |

Base 2 | 1111_{2} | 110101_{2} |

Base 3 | 120_{3} | 1222_{3} |

Base 4 | 33_{4} | 311_{4} |

Base 5 | 30_{5} | 203_{5} |

Base 6 | 23_{6} | 125_{6} |

Base 7 | 21_{7} | 104_{7} |

Base 8 | 17_{8} | 65_{8} |

Base 9 | 16_{9} | 58_{9} |

Base 10 | 15_{10} | 53_{10} |

Base 11 | 14_{11} | 49_{11} |

Base 12 | 13_{12} | 45_{12} |

Base 13 | 12_{13} | 41_{13} |

Base 14 | 11_{14} | 3b_{14} |

Base 15 | 10_{15} | 38_{15} |

Base 16 | f_{16} | 35_{16} |