most common system for writing numbers From Wikipedia, the free encyclopedia

The **Hindu–Arabic numeral system**, sometimes known as the **Indo–Arabic numeral** or **Latin numeral system** or simply the **Hindu numeral system**, **Indo numeral system** or **Arabic numeral system**, is a system of numbers used all around the world.^{[1]} It is a base-ten place-value system.^{[2]} This system has ten basic lowercase-only symbols, which are 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.^{[3]} The Hindu–Arabic numeral system was first created by the Indians in the 6th century and used by the Arabs in the 7th century and Romans in the 16th century.

Base | Decimal (base 10) |
---|---|

Zero | 0 |

One | 1 |

Two | 2 |

Three | 3 |

Four | 4 |

Five | 5 |

Six | 6 |

Seven | 7 |

Eight | 8 |

Nine | 9 |

In Europe, Hindu-Arabic numeral system became very popular after the publication of *Liber Abaci,* a book written by Italian mathematician Fibonacci.^{[4]} They are very different from previous methods of counting, such as the abacus. The numbers allowed mathematics to develop. In the past, many other number systems had been used.^{[5]}

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