Verify if the ISBN 978-0-760-73261-6 is valid?
Solution
Given that ISBN 978-0-760-73261-6
The given ISBN is 13 digit ISBN number
We assign the position of each number from right to left
For
9 the position is 13
7 the position is 12
8 the position is 11
0 the position is 10
7 the position is 9
6 the position is 8
0 the position is 7
7 the position is 6
3 the position is 5
2 the position is 4
6 the position is 3
1 the position is 2
6 the position is 0
Now we the Odd number positions by 1 and Even number positions by 3.
Now we divide this sum by and see that the remainder is
since the remainder is not zero, therefore, the given ISBN number is not a valid ISBN number.
Comments