Luhn Algorithm

Luhn Algorithm, also known as the modulus 10 or mod 10 algorithm, is a mathematical formula employed to validate the integrity of identification numbers, such as payment card numbers or social security numbers. Named after its creator Hans Peter Luhn, the algorithm ensures that the digits in a numerical sequence adhere to a specific pattern to prevent errors or fraud.

In the context of payment card numbers, the Luhn Algorithm checks the validity of the card number by verifying its mathematical consistency. It is commonly used during the validation process in electronic transactions and helps identify accidental errors or potentially fraudulent activities.

Widely adopted in various industries, the Luhn Algorithm plays a critical role in maintaining the accuracy and reliability of identification numbers, contributing to the overall security of electronic transactions and financial systems.