Tabla del 660
| 660 | X | 1 | = | 660 |
| 660 | X | 2 | = | 1320 |
| 660 | X | 3 | = | 1980 |
| 660 | X | 4 | = | 2640 |
| 660 | X | 5 | = | 3300 |
| 660 | X | 6 | = | 3960 |
| 660 | X | 7 | = | 4620 |
| 660 | X | 8 | = | 5280 |
| 660 | X | 9 | = | 5940 |
| 660 | X | 10 | = | 6600 |
| 660 | X | 1 | = | 660 |
| 660 | X | 2 | = | 1320 |
| 660 | X | 3 | = | 1980 |
| 660 | X | 4 | = | 2640 |
| 660 | X | 5 | = | 3300 |
| 660 | X | 6 | = | 3960 |
| 660 | X | 7 | = | 4620 |
| 660 | X | 8 | = | 5280 |
| 660 | X | 9 | = | 5940 |
| 660 | X | 10 | = | 6600 |