Next prime | 281 |

Previous prime | 271 |

Octal | (425)_{8} |

Hexadecimal | (115)_{16} |

Prime gap | 4 |

17th Prime triplet (the smallest number) | The others are 281 and 283 . |

17th Cousin prime (the small number) | The big number is 281 . |

34th Sexy prime (the small number) | The big number is 283 . |

27th Prime of the Form 3n+1 | 13^{2} + 3 * 6^{2} |

27th Prime of the Form 4n+1 | 9^{2} + 14^{2} |