Luhn Algorithm

The Luhn algorithm or Luhn formula, also known as the “modulus 10” or “mod 10” algorithm, named after its creator, IBM scientist Hans Peter Luhn, is a simple check digit formula used to validate a variety of identification numbers.

It is described in U.S. Patent No. 2,950,048, granted on August 23, 1960.

Why to use Luhn Algorithm?

The Luhn algorithm will detect any single-digit error, as well the malicious alteration of two digits.

Where it is used?

Luhn Algorithm is used widely and available in public domain.

• Credit card numbers

• IMEI numbers

• National Provider Identifier numbers

• Israel ID numbers