Tabla del 491
| 491 | X | 1 | = | 491 |
| 491 | X | 2 | = | 982 |
| 491 | X | 3 | = | 1473 |
| 491 | X | 4 | = | 1964 |
| 491 | X | 5 | = | 2455 |
| 491 | X | 6 | = | 2946 |
| 491 | X | 7 | = | 3437 |
| 491 | X | 8 | = | 3928 |
| 491 | X | 9 | = | 4419 |
| 491 | X | 10 | = | 4910 |
| 491 | X | 1 | = | 491 |
| 491 | X | 2 | = | 982 |
| 491 | X | 3 | = | 1473 |
| 491 | X | 4 | = | 1964 |
| 491 | X | 5 | = | 2455 |
| 491 | X | 6 | = | 2946 |
| 491 | X | 7 | = | 3437 |
| 491 | X | 8 | = | 3928 |
| 491 | X | 9 | = | 4419 |
| 491 | X | 10 | = | 4910 |