ISBN 271178734X hat failed the check­sum digit test.
The following 13 formally correct ISBNs were determined. Starting from these ISBNs the value 271178734X 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: French language
ISBNas­su­med er­rorCatalogs for checking
2-7117-5734-Xsixth digit was chan­ged. amazon.co.uk amazon.com amazon.de
2-7117-8374-X7th and 8th digits were swap­ped. amazon.co.uk amazon.com amazon.de
2-7117-8634-Xseven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
2-7117-8732-Xninth digit was chan­ged. amazon.co.uk amazon.com amazon.de
2-7117-8734-6tenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
2-7117-8794-Xeighth digit was chan­ged. amazon.co.uk amazon.com amazon.de
2-7127-8734-Xfourth digit was chan­ged. amazon.co.uk amazon.com amazon.de
2-7177-8134-X4th and 7th digits were swap­ped. amazon.co.uk amazon.com amazon.de
2-7417-8731-X3rd and 9th digits were swap­ped. amazon.co.uk amazon.com amazon.de
2-7617-8734-Xthird digit was chan­ged. amazon.co.uk amazon.com amazon.de
2-911787-34-Xsecond digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: German language
ISBNas­su­med er­rorCatalogs for checking
3-7117-8724-X1st and 8th digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: [no known group prefix]
ISBNas­su­med er­rorCatalogs for checking
671178734Xfirst digit was chan­ged. amazon.co.uk amazon.com amazon.de

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