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Modulus 97 Checksum

Modulus 97 is the algebraic algorithm defined by ISO 7064 MOD-97-10 used to check the mathematical validity of bank account identifiers, including IBANs. The algorithm converts alphanumeric characters to numbers, performs modulo-97 division, and verifies that the remainder equals 1 to detect entry errors.

Aliases: MOD-97, MOD-97-10, ISO 7064 MOD-97-10

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IBAN (International Bank Account Number)

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ISO 7064

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