ISBN 9878086964 hat failed the check­sum digit test.
The following 12 formally correct ISBNs were determined. Starting from these ISBNs the value 9878086964 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: former U.S.S.R
ISBNas­su­med er­rorCatalogs for checking
5-87808-696-4first digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: [no known group prefix]
ISBNas­su­med er­rorCatalogs for checking
68780899641st and 7th digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Malaysia
ISBNas­su­med er­rorCatalogs for checking
967-80-8696-4second digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: South Pacific
ISBNas­su­med er­rorCatalogs for checking
982-80-8696-4third digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Argentina
ISBNas­su­med er­rorCatalogs for checking
987-708-696-4fourth digit was chan­ged. amazon.co.uk amazon.com amazon.de
987-800-696-4sixth digit was chan­ged. amazon.co.uk amazon.com amazon.de
987-808-636-4eighth digit was chan­ged. amazon.co.uk amazon.com amazon.de
987-808-696-8tenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
987-808-698-4ninth digit was chan­ged. amazon.co.uk amazon.com amazon.de
987-808-796-4seven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
987-88-8696-4fifth digit was chan­ged. amazon.co.uk amazon.com amazon.de
987-9086-86-44th and 8th digits were swap­ped. amazon.co.uk amazon.com amazon.de

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