How to valid ISBN numbers?

In order to help your programming or testing tasks, FYIcenter.com has designed this online tool for you to validate any given ISBN number.

All you need to do is to enter an ISBN number and click the "Validate" button. Validation result will be displayed in the result area.

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ISBN Number:

Validation result by FYIcenter.com - ISBN Number:

Specified ISBN Number: Valid ✔

ISBN Number: 978-0-306-40615-7

What is a valid ISBN number?

A ISBN number is a unique identifier assigned to a book by the publisher.

ISBN numbers are 13 digits long and have 5 parts:

• Prefix - 3 digits representing the GS1 standard. For 10-digit ISBN numbers generated before 2007, the GS1 prefix is not specified.
• Registration (Group) - 1 to 5 digts representing a language, a country or a territory.
• Registrant (Publisher) 1 to 7 digits representing a publisher.
• Publication - 1 to 7 digits representing a specific book.
• Checksum - 1 digit calculated using a checksum algorithm.

 

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