.

Calculate the Check Digit.

 

The Check Digit is easy to calculate. This is how you do it.

 

The letters of the prefix have a certain value:

A

10

G

17

M

24

S

30

Y

37

B

12

H

18

N

25

T

31

Z

38

C

13

I

19

O

26

U

32

 

 

D

14

J

20

P

27

V

34

 

 

E

15

K

21

Q

28

W

35

 

 

F

16

L

23

R

29

X

36

 

 

 

 

So (for example) prefix MWCU is:

Letter

M

W

C

U

Value

24

35

13

32

 

The value of the numbers is equal to the numbers of the container number.

Number

6

0

5

9

7

8

Value

6

0

5

9

7

8

 

Now calculate like this:

M

24

X

1

=

24

W

35

X

2

=

70

C

13

X

4

=

52

U

32

X

8

=

256

6

6

X

16

=

96

0

0

X

32

=

0

5

5

X

64

=

320

9

9

X

128

=

1152

7

7

X

256

=

1792

8

8

X

512

=

4096

 

 

 

 

 

 

 

 

 

 

TOTAL

7858

 

The total, in this case 7858 is divided by 11 (Long Division) and the remainder is the Check Digit.

 

1

1

/

7

8

5

8

\

7

1

4

 

 

 

 

7

7

 

 

 

 

 

 

 

 

 

 

 

1

5

 

 

 

 

 

 

 

 

 

 

1

1

 

 

 

 

 

 

 

 

 

 

 

4

8

 

 

 

 

 

 

 

 

 

 

4

4

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

The Check Digit is 4.

 

 

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