Structure of EAN-13
| First digit |
First group of 6 digits |
Last group of 6 digits
|
| 0 |
LLLLLL |
RRRRRR
|
| 1 |
LLGLGG |
RRRRRR
|
| 2 |
LLGGLG |
RRRRRR
|
| 3 |
LLGGGL |
RRRRRR
|
| 4 |
LGLLGG |
RRRRRR
|
| 5 |
LGGLLG |
RRRRRR
|
| 6 |
LGGGLL |
RRRRRR
|
| 7 |
LGLGLG |
RRRRRR
|
| 8 |
LGLGGL |
RRRRRR
|
| 9 |
LGGLGL |
RRRRRR
|
Encoding of the digits
| Digit |
L-code |
G-code |
R-code
|
| 0 |
0001101 |
0100111 |
1110010
|
| 1 |
0011001 |
0110011 |
1100110
|
| 2 |
0010011 |
0011011 |
1101100
|
| 3 |
0111101 |
0100001 |
1000010
|
| 4 |
0100011 |
0011101 |
1011100
|
| 5 |
0110001 |
0111001 |
1001110
|
| 6 |
0101111 |
0000101 |
1010000
|
| 7 |
0111011 |
0010001 |
1000100
|
| 8 |
0110111 |
0001001 |
1001000
|
| 9 |
0001011 |
0010111 |
1110100
|