Extended Arabic-Indic Digit Seven

It is the ordinary digit seven in Persian and related Arabic-script writing.

The wider numeral family grew from Indian decimal notation. Knowledge of Indian numerals had reached lands that later became part of the Arabic world by the seventh century. In the early ninth century, the mathematician al-Khwarizmi helped make Indian arithmetic accessible to scholars writing in Arabic, where place-value notation made calculation more compact.

Arabic-Indic digits such as ٧ and Western digits such as 7 are related regional forms; Western forms traveled from the western Arabic world into Europe. Bookkeeping shaped by Persian language and custom also used siāq, a trained shorthand for accounts. It was a separate system, not an ancestor of ۷.

Why does ۷ look different across languages?

Language-aware fonts can draw this one character in local forms. Persian, Sindhi, Urdu, and Kashmiri fonts may give ۷ different local shapes; its value stays seven.

Persian numbers run left to right inside right-to-left text. This bidirectional layout can make punctuation or nearby Latin words appear out of place, even though the text order and the number's value stay the same.

In Persian history, the number seven has ritual and cultural associations, including completeness. The digit ۷ alone does not signal that symbolism: surrounding words show whether it is a count, date, label, or reference.