11 groups of order 6604.
| SmallGroups | group |
|---|---|
| (6604, 1) | C4×C13×C127 #20268683 |
| (6604, 2) | Dic13×C127 #20268684 |
| (6604, 3) | C13×Dic127 #20268685 |
| (6604, 4) | Dic1651 #20268686 |
| (6604, 5) | C22×C13×C127 #20268687 |
| (6604, 6) | #261×C127 #20268688 |
| (6604, 7) | C127⋊#261 #20268689 |
| (6604, 8) | D13×D127 #20268690 |
| (6604, 9) | C2×D1651 #20268691 |
| (6604, 10) | C2×D13×C127 #20268692 |
| (6604, 11) | C2×C13×D127 #20268693 |