# Compare 61 vs 397

Property | 61 | 397 |
---|---|---|

Type | prime | prime |

Unique factors | 1 | 1 |

Total factors | 1 | 1 |

Prime factorization | 61^{1} | 397^{1} |

Prime factorization | 61 | 397 |

Divisors count | 2 | 2 |

Divisors | 1, 61 | 1, 397 |

Number of properties | 12 | 8 |

Additive primes | 11th | 45th |

Centered decagonal primes | 3rd | |

Centered square primes | 4th | |

Cousin primes (1st member) | 22nd | |

Cuban primes 1 | 4th | 8th |

Happy primes | 21st | |

Isolated primes | 37th | |

Left-truncatable primes | 31st | |

Long primes | 8th | |

Primes | 18th | 78th |

Pythagorean primes | 8th | 37th |

Sexy primes (1st member) | 12th | |

Sexy prime quadrupletss (1st member) | 4th | |

Sexy prime triplets (1st member) | 8th | |

Solinas primes | 15th | |

Twin primes (2nd member) | 7th | |

Roman numberals | LXI | CCCXCVII |

Base 2 | 111101_{2} | 110001101_{2} |

Base 3 | 2021_{3} | 112201_{3} |

Base 4 | 331_{4} | 12031_{4} |

Base 5 | 221_{5} | 3042_{5} |

Base 6 | 141_{6} | 1501_{6} |

Base 7 | 115_{7} | 1105_{7} |

Base 8 | 75_{8} | 615_{8} |

Base 9 | 67_{9} | 481_{9} |

Base 10 | 61_{10} | 397_{10} |

Base 11 | 56_{11} | 331_{11} |

Base 12 | 51_{12} | 291_{12} |

Base 13 | 49_{13} | 247_{13} |

Base 14 | 45_{14} | 205_{14} |

Base 15 | 41_{15} | 1b7_{15} |

Base 16 | 3d_{16} | 18d_{16} |