Mod 7 check digit. To determine the check digit for a nine digit IT number, the first eight digits of the in bond number are divided by seven and the whole number remainder is the check digit. A check digit is a form of redundancy check used for error detection on identification numbers, such as bank account numbers, which are used in an application where they will at least sometimes be input manually. The remainder of this division is the Check Digit. What is the Mod 7 algorithm used in our application to find the check digit for Pro Number ? Feb 15, 2014 · You do a MOD 7 check on the first eight digits of the 9-digit number as a single 8-digit integer, and then check if that result equals the last digit in the card number. Aug 15, 2016 · Technically this is described as a MOD-7 check digit calculation. The remainder after the period. . This answer is the “Mod-7 Check Digit”; Mod-7 Check digit is then inserted at the end of the 8-digit serial number, which will then have 9-digits. Using a calculator divided the PRO Number minus the check digit by seven. The decimal remainder will determine the check digit number. For further clarification we have included a step by step example on how to calculate the check digit. If more than one digit appears as the remainder use only the first digit; Round up that answer to the next whole number. The Check Digit is determined or verified by dividing the first eight digits by seven. Nov 27, 2015 · The method of calculating the check digit is MOD 7. qkccdr fenxy hkld evbtm iocmb zija uatgv ppzyu qgvehb ivtiw