| 668 | x | 1 | = | 668 |
| 668 | x | 2 | = | 1336 |
| 668 | x | 3 | = | 2004 |
| 668 | x | 4 | = | 2672 |
| 668 | x | 5 | = | 3340 |
| 668 | x | 6 | = | 4008 |
| 668 | x | 7 | = | 4676 |
| 668 | x | 8 | = | 5344 |
| 668 | x | 9 | = | 6012 |
| 668 | x | 10 | = | 6680 |
| 668 | x | 11 | = | 7348 |
| 668 | x | 12 | = | 8016 |
| 668 | x | 13 | = | 8684 |
| 668 | x | 14 | = | 9352 |
| 668 | x | 15 | = | 10020 |
| 668 | x | 16 | = | 10688 |
| 668 | x | 17 | = | 11356 |
| 668 | x | 18 | = | 12024 |
| 668 | x | 19 | = | 12692 |
| 668 | x | 20 | = | 13360 |
| 668 | x | 21 | = | 14028 |
| 668 | x | 22 | = | 14696 |
| 668 | x | 23 | = | 15364 |
| 668 | x | 24 | = | 16032 |
| 668 | x | 25 | = | 16700 |
| 668 | x | 26 | = | 17368 |
| 668 | x | 27 | = | 18036 |
| 668 | x | 28 | = | 18704 |
| 668 | x | 29 | = | 19372 |
| 668 | x | 30 | = | 20040 |