Hi, In 2014 we will have to use a new bank account number in Europe.
It looks like this: NL91ABNA0417164300 91 is a check digit This check digit is a result of a mod 97 operation. The calculation that needs to be performed is: (mod(101123100417164300232100,97)) (The length of the figure is 24 characters) The result = 7 The check digit then becomes 98 - 7 = 91 My question is: This figure is too big for a modular operation and bignums are not allowed in the mod function. Does anybody know a workaround? N.B. To rules to create the long figure are: Change the IBAN to: ABNA0417164300NL00 (Put NL (=countrycode) after the figure and add two zeroes to it. Replace all letters by it's position in the Alphabet and add 9 to this number ( A = 10, B = 11, and so on) Tony
