# Compare 643 vs 659

Property | 643 | 659 |
---|---|---|

Type | prime | prime |

Unique factors | 1 | 1 |

Total factors | 1 | 1 |

Prime factorization | 643^{1} | 659^{1} |

Prime factorization | 643 | 659 |

Divisors count | 2 | 2 |

Divisors | 1, 643 | 1, 659 |

Number of properties | 7 | 8 |

Additive primes | 63rd | |

Chen primes | 84th | |

Cousin primes (1st member) | 29th | |

Left-truncatable primes | 38th | |

Long primes | 44th | |

Lucky primes | 33rd | |

Primes | 117th | 120th |

Prime triplets (2nd member) | 24th | |

Sexy primes (2nd member) | 59th | |

Sexy prime quadrupletss (4th member) | 7th | |

Sexy prime triplets (3rd member) | 25th | |

Sophie germain primes | 30th | |

Twin primes (1st member) | 30th | |

Twin primes (2nd member) | 29th | |

Roman numberals | DCXLIII | DCLIX |

Base 2 | 1010000011_{2} | 1010010011_{2} |

Base 3 | 212211_{3} | 220102_{3} |

Base 4 | 22003_{4} | 22103_{4} |

Base 5 | 10033_{5} | 10114_{5} |

Base 6 | 2551_{6} | 3015_{6} |

Base 7 | 1606_{7} | 1631_{7} |

Base 8 | 1203_{8} | 1223_{8} |

Base 9 | 784_{9} | 812_{9} |

Base 10 | 643_{10} | 659_{10} |

Base 11 | 535_{11} | 54a_{11} |

Base 12 | 457_{12} | 46b_{12} |

Base 13 | 3a6_{13} | 3b9_{13} |

Base 14 | 33d_{14} | 351_{14} |

Base 15 | 2cd_{15} | 2de_{15} |

Base 16 | 283_{16} | 293_{16} |