4 ms·

https://www.investopedia.com/terms/l/luhn-algorithm.asp https://www.investopedia.com/terms/l/luhn-algorithm.asp

• jetbooster 6y ago
  See also https://gchq.github.io/CyberChef/#recipe=Luhn_Checksum https://gchq.github.io/CyberChef/#recipe=Luhn_Checksum()