14 groups of order 15976.
| SmallGroups | group |
|---|---|
| (15976, 1) | C8×C1997 #30630429 |
| (15976, 2) | C2×C4×C1997 #30630430 |
| (15976, 3) | D4×C1997 #30630431 |
| (15976, 4) | Q8×C1997 #30630432 |
| (15976, 5) | C23×C1997 #30630433 |
| (15976, 6) | #30630434 |
| (15976, 7) | C4×D1997 #30630435 |
| (15976, 8) | C2×Dic1997 #30630436 |
| (15976, 9) | C22⋊D1997 #30630437 |
| (15976, 10) | D7988 #30630438 |
| (15976, 11) | Dic3994 #30630439 |
| (15976, 12) | C22×D1997 #30630440 |
| (15976, 13) | #30630441 |
| (15976, 14) | C2×#22547819 #30630442 |