41. A zero ( 0 ) replaces a ten ( 10 ), so, in all cases, a single check digit results. 42. SEDOLs are seven characters in length, consisting of two parts : a six-place alphanumeric code and a trailing check digit . 43. These three methods use a single check digit and will therefore fail to capture around 10 % of more complex errors. 44. The last digit R is an error detecting check digit , that allows some errors to be detected in scanning or manual entry. 45. Any NHI Number that does not fit the correct format or that has an incorrect check digit is referred to as invalid. 46. The check digit for a SEDOL is chosen to make the total weighted sum of all seven characters a multiple of 10. 47. The EAN Barcodes numbers for books are derived from the ISBN by prefixing 978, for Bookland, and calculating a new check digit . 48. In the case of a MICR line that is illegible or torn, the check can still be processed without the check digit . 49. This vector is multiplied by the vector scalar obtaining a number N 8123476 The check digit is found to be N module 10. 50. Shorter numbers are padded with leading zeros before the addition of the country code and a check digit transform the NSIN to an ISIN.
