ISBN

The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

Internation Standard Book Number: A 9 digit number, divided with hyphen with a control digit, which can be 0...9 or X.

Value type of the APE key ISBN.

Check of correctness:

N1 N2 N3 N4 N5 N6 N7 N8 N9 - Nchk

The following equation must be fullfilled:

(2 N1 + 3 N2 + 4 N3 + 5 N4 + 6 N5 + 7 N6 + 8 N7 + 9 N8 + 10 N9) MOD 11 = Nchk 
A value of 10 for Nchk is encoded as a X.

Examples:

3-89319-434-7
3-05-500074-9
0-201-54199-8
3-341-00480-7
3-341-00488-X