ISBN 0098654321 hat failed the check­sum digit test.
The following 9 formally correct ISBNs were determined. Starting from these ISBNs the value 0098654321 that you input could have resulted frome one error (error in one digit or transposition of two digits.) You can now check using the links given for the catalogs of amazon.co.uk, amazon.com and amazon.de whether any book is listed for the respective URL. To the home page
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ISBN prefix group: English language
ISBNas­su­med er­rorCatalogs for checking
0-05-865432-1third digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-09-565432-1fourth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-09-863432-1sixth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-09-865432-2tenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-09-865438-1ninth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-09-865472-1eighth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-09-865732-1seven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-09-885432-1fifth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-598-65432-1second digit was chan­ged. amazon.co.uk amazon.com amazon.de

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