**Hexadecimal Number System:**

In mathematics and computing, hexadecimal (also base 16, or hex) is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A,B,C,D,E,F (or alternatively a, b, c, d, e, f) to represent values ten to fifteen.

**Octal Number System:**

The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7. Octal numerals can be made from binary numerals by grouping consecutive binary digits into groups of three (starting from the right).

Hexadecimal | Octal |
---|---|

0 | 0 |

1 | 1 |

2 | 2 |

3 | 3 |

4 | 4 |

5 | 5 |

6 | 6 |

7 | 7 |

8 | 10 |

9 | 11 |

A | 12 |

B | 13 |

C | 14 |

D | 15 |

E | 16 |

F | 17 |

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