# Compare 15 vs 43

Property | 15 | 43 |
---|---|---|

Type | semiprime | prime |

Unique factors | 2 | 1 |

Total factors | 2 | 1 |

Prime factorization | 3^{1} × 5^{1} | 43^{1} |

Prime factorization | 3 × 5 | 43 |

Divisors count | 4 | 2 |

Divisors | 1, 3, 5, 15 | 1, 43 |

Number of properties | 1 | 12 |

Additive primes | 9th | |

Centered heptagonal primes | 1st | |

Cousin primes (1st member) | 6th | |

Left-truncatable primes | 9th | |

Lucky primes | 6th | |

Primes | 14th | |

Prime triplets (2nd member) | 7th | |

Prime triplets (3rd member) | 6th | |

Semiprimes | 6th | |

Sexy primes (2nd member) | 8th | |

Sexy prime triplets (3rd member) | 5th | |

Twin primes (2nd member) | 6th | |

Wagstaff primes | 3rd | |

Roman numberals | XV | XLIII |

Base 2 | 1111_{2} | 101011_{2} |

Base 3 | 120_{3} | 1121_{3} |

Base 4 | 33_{4} | 223_{4} |

Base 5 | 30_{5} | 133_{5} |

Base 6 | 23_{6} | 111_{6} |

Base 7 | 21_{7} | 61_{7} |

Base 8 | 17_{8} | 53_{8} |

Base 9 | 16_{9} | 47_{9} |

Base 10 | 15_{10} | 43_{10} |

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

Base 12 | 13_{12} | 37_{12} |

Base 13 | 12_{13} | 34_{13} |

Base 14 | 11_{14} | 31_{14} |

Base 15 | 10_{15} | 2d_{15} |

Base 16 | f_{16} | 2b_{16} |