Khmer Digit One

Khmer Digit One at U+17E1 is the Khmer-script numeral for the number one, used wherever numbers are written in Khmer notation. It belongs to the Khmer Unicode block and is categorized as a decimal digit, so it functions as part of the Khmer set of digits from zero through nine. In Cambodia, this digit appears in ordinary Khmer text for dates, prices, addresses, page numbers, forms, school materials, and public information. For example, Khmer-language calendars, textbooks, receipts, and signs may write the day or quantity using Khmer numerals rather than European digits, especially in formal, educational, or culturally local settings. It is also used in Buddhist, historical, and administrative materials where Khmer typography is preferred, such as temple notices, traditional calendars, archival documents, and government-facing Khmer publications. In mixed modern text, Khmer digits and European digits often coexist, so a phone number, year, or list item may be styled one way in a headline and another way in body text. Because it is a true decimal digit, software may treat it numerically in some contexts, but search, validation, and data entry systems do not always handle Khmer numerals the same as ASCII digits. It is visually distinct from the European digit 1, yet users working across languages may still need to normalize numbers when copying data into databases, spreadsheets, or online forms.