The Luhn algorithm is a method for validating bank card numbers, but it does not encrypt or store the PIN or any password. It only functions as a checksum to detect typing errors in a card number.

The Luhn algorithm or Luhn formula (creator: IBM scientist Hans Peter Luhn), also known as the " modulus 10" or "mod 10" algorithm, is a simple check digit formula used to validate a variety of …

Aug 12, 2025 · All mainstream credit card numbers employ a mathematical trick designed to catch the most common typos. It’s called the Luhn algorithm, named after IBM researcher Hans Peter Luhn, …

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 …

Helper page for calculating numbers that pass the Luhn validation algorithm.

Apr 21, 2025 · The Luhn algorithm, also known as the Luhn formula, “modulus 10,” or “mod 10” algorithm, is a simple checksum formula used to validate identification numbers.

Nov 27, 2025 · What Is the Luhn Algorithm? The Luhn algorithm—also known as the “Modulus 10 algorithm”—is a formula that is used to determine whether the identification number provided by a …

The Luhn algorithm, which is also frequently referred to as the Modulus 10 or the Luhn Formula, verifies the numbers within a given set of digits to evaluate whether the sum of those numbers is aligned with …

Invented in 1954 by an engineer at IBM, the Luhn algorithm has since been adopted as a standard by all major credit card issuers, as well as many government IDs, and is specified in ISO/IEC 7812-1.

German computer scientist Hans Peter Luhn developed the Luhn algorithm in 1954. It calculates simple checksum formula used to validate identification numbers such as credit card numbers.