# Compare 43 vs 45

Property | 43 | 45 |
---|---|---|

Type | prime | composite number |

Unique factors | 1 | 2 |

Total factors | 1 | 3 |

Prime factorization | 43^{1} | 3^{2} × 5^{1} |

Prime factorization | 43 | 3 × 3 × 5 |

Divisors count | 2 | 6 |

Divisors | 1, 43 | 1, 3, 5, 9, 15, 45 |

Number of properties | 12 | 0 |

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 | |

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

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

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

Wagstaff primes | 3rd | |

Roman numberals | XLIII | XLV |

Base 2 | 101011_{2} | 101101_{2} |

Base 3 | 1121_{3} | 1200_{3} |

Base 4 | 223_{4} | 231_{4} |

Base 5 | 133_{5} | 140_{5} |

Base 6 | 111_{6} | 113_{6} |

Base 7 | 61_{7} | 63_{7} |

Base 8 | 53_{8} | 55_{8} |

Base 9 | 47_{9} | 50_{9} |

Base 10 | 43_{10} | 45_{10} |

Base 11 | 3a_{11} | 41_{11} |

Base 12 | 37_{12} | 39_{12} |

Base 13 | 34_{13} | 36_{13} |

Base 14 | 31_{14} | 33_{14} |

Base 15 | 2d_{15} | 30_{15} |

Base 16 | 2b_{16} | 2d_{16} |