1. Data Dictionary Guide
  2. IBM Modulus 11 Self-Check Algorithm

IBM Modulus 11 Self-Check Algorithm

Each position in the base number has a weight factor. Modulus 11 counts positions from the right-most digit (not including the check digit).

The Modulus 11 weight factors are 2, 3, 4, 5, 6, 7, 2, 3, 4, 5, 6, 7, 2, 3, 4, 5, 6, 7, 2 for positions 1 to 31, respectively.

After you set next numbers, do not change them. If you change next numbers, these issues might occur:

  • System performance will be affected.

  • Next numbers functionality will not duplicate numbers; when it reaches the maximum, it will start over.

  • You will not be able to change position or add a new entry without modifying the program.

Next numbers connect to the data. A data item in the data dictionary points to the next numbers system which you can manipulate with the Next Numbers application (P0002).