# Compare 659 vs 661

Property | 659 | 661 |
---|---|---|

Type | prime | prime |

Unique factors | 1 | 1 |

Total factors | 1 | 1 |

Prime factorization | 659^{1} | 661^{1} |

Prime factorization | 659 | 661 |

Divisors count | 2 | 2 |

Divisors | 1, 659 | 1, 661 |

Number of properties | 8 | 5 |

Additive primes | 65th | |

Centered decagonal primes | 8th | |

Chen primes | 84th | |

Long primes | 44th | |

Primes | 120th | 121st |

Pythagorean primes | 57th | |

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) | 30th | |

Roman numberals | DCLIX | DCLXI |

Base 2 | 1010010011_{2} | 1010010101_{2} |

Base 3 | 220102_{3} | 220111_{3} |

Base 4 | 22103_{4} | 22111_{4} |

Base 5 | 10114_{5} | 10121_{5} |

Base 6 | 3015_{6} | 3021_{6} |

Base 7 | 1631_{7} | 1633_{7} |

Base 8 | 1223_{8} | 1225_{8} |

Base 9 | 812_{9} | 814_{9} |

Base 10 | 659_{10} | 661_{10} |

Base 11 | 54a_{11} | 551_{11} |

Base 12 | 46b_{12} | 471_{12} |

Base 13 | 3b9_{13} | 3bb_{13} |

Base 14 | 351_{14} | 353_{14} |

Base 15 | 2de_{15} | 2e1_{15} |

Base 16 | 293_{16} | 295_{16} |