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ISBN-10: • The number has 9 information digits and ends with 1 check digit. • Assuming the digits are "abcdefghi-j" where j is the check digit. Then the check digit is computed by the following formula: j = ( [a b c d e f g h i] * [1 2 3 4 5 6 7 8 9] ) mod 11 ISBN-13: • The number has 12 information digits and ends with 1 check digit.
This sum is divided by 43. The rest of this division corresponds to the checksum, which is then replaced by the character corresponding to the reference number is represented. A calculation example: Digits: 1 5 9 A Z. Reference numbers: 1 +5 +9 +10 +35. Sum of reference numbers: 60.
The same calculation is performed when the line is read to ensure that the check digit is the same. Although check digit routines vary widely from application to application, the following is an example of a typical Mod 10 check digit calculation.
The diagram below shows a 14-digit GTIN (application identifier 01) barcode. The last digit '1' is the MOD 10 check digit required by the GS1 specifications. This check digit can be entered manually or calculated automatically by ConnectCode.
/// Constructs the check digit for a given numeric string using the Luhn algorithm; also known as the "mod 10" algorithm.
I need to add a check digit to the end of a numeric short keyline using the MOD-10 calculation routine. Can this be done in Excel? Thank you so much! Kathy
The Luhn algorithm, a simple checksum verification algorithm, is also known as Luhn formula, modulus 10 algorithm, or mod 10 algorithm. It is most notably used to validate credit card numbers and IMEI phone identification numbers . Full Code. enter numbers only, including check digit.
