Tabla del 821
| 821 | X | 1 | = | 821 |
| 821 | X | 2 | = | 1642 |
| 821 | X | 3 | = | 2463 |
| 821 | X | 4 | = | 3284 |
| 821 | X | 5 | = | 4105 |
| 821 | X | 6 | = | 4926 |
| 821 | X | 7 | = | 5747 |
| 821 | X | 8 | = | 6568 |
| 821 | X | 9 | = | 7389 |
| 821 | X | 10 | = | 8210 |
| 821 | X | 1 | = | 821 |
| 821 | X | 2 | = | 1642 |
| 821 | X | 3 | = | 2463 |
| 821 | X | 4 | = | 3284 |
| 821 | X | 5 | = | 4105 |
| 821 | X | 6 | = | 4926 |
| 821 | X | 7 | = | 5747 |
| 821 | X | 8 | = | 6568 |
| 821 | X | 9 | = | 7389 |
| 821 | X | 10 | = | 8210 |