8digit

Eight-digit refers to something consisting of eight digits. In numeric terms, an eight-digit number is any integer from 10,000,000 to 99,999,999. If eight digits are used as a fixed-width code or identifier, leading zeros may be included, so an eight-character code could have up to 100,000,000 possible values from 00000000 to 99999999. In general use, the term may denote either the numeric range or an eight-digit string used in data systems.

In computing and data management, eight-digit identifiers are common for fixed-width fields such as customer numbers, order IDs, or product codes. These codes can be purely numeric or alphanumeric, depending on system design, and are often generated to ensure consistent length for sorting, indexing, and interoperability across software or databases.

In barcoding and product standards, the eight-digit format appears in the EAN-8 (also known as EAN-8 barcode), a compact barcode used on small packages. EAN-8 encodes eight numeric digits, with the final digit serving as a check digit computed from the preceding digits. EAN-8 is typically used where the larger EAN-13 code would not fit on a product.

As a term, 8digit may also be used as a brand name, product line, or username, reflecting a stylized or abbreviated branding choice. Because it is not a single standardized concept, contexts vary: it might refer to an eight-digit number, an eight-character code, or a company or product that uses the name in marketing.

See also: eight-digit numbers, fixed-width coding, EAN-8 barcode, numeric identifiers.

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