ISBN 807021561X hat failed the checksum digit test. |
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The following 14 formally correct ISBNs were determined. Starting from these ISBNs the value 807021561X 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 | ||||
ISBN | assumed error | Catalogs for checking | ||
---|---|---|---|---|
2-07-021561-X | first digit was changed. | amazon | amazon | amazon |
ISBN prefix group: former Czechoslovakia | ||||
ISBN | assumed error | Catalogs for checking | ||
80-502-1561-X | third digit was changed. | amazon | amazon | amazon |
80-602-1571-X | 3rd and 8th digits were swapped. | amazon | amazon | amazon |
80-7020-561-X | sixth digit was changed. | amazon | amazon | amazon |
80-7021-161-X | seventh digit was changed. | amazon | amazon | amazon |
80-7021-516-X | 8th and 9th digits were swapped. | amazon | amazon | amazon |
80-7021-561-5 | tenth digit was changed. | amazon | amazon | amazon |
80-7021-564-X | ninth digit was changed. | amazon | amazon | amazon |
80-7021-581-X | eighth digit was changed. | amazon | amazon | amazon |
80-7031-561-X | fifth digit was changed. | amazon | amazon | amazon |
80-7051-261-X | 5th and 7th digits were swapped. | amazon | amazon | amazon |
80-7421-561-X | fourth digit was changed. | amazon | amazon | amazon |
ISBN prefix group: Norway | ||||
ISBN | assumed error | Catalogs for checking | ||
82-7001-561-X | 2nd and 5th digits were swapped. | amazon | amazon | amazon |
ISBN prefix group: Italy | ||||
ISBN | assumed error | Catalogs for checking | ||
88-7021-561-X | second digit was changed. | amazon | amazon | amazon |
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