Finite Group DatabasebetaFinite Group DatabasebetaOrder 19900.
18 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C2×C25×C199 | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | C25×C199 | C4 | 1 | 1 | yes | characteristic, complemented, Hall |
| 3 | C5×Dic199 | C5 | 1 | 1 | yes | maximal, characteristic |
| 4 | C2×C5×C199 | C2×C5 | 1 | 1 | yes | characteristic |
| 5 | C5×C199 | C4×C5 | 1 | 1 | yes | characteristic |
| 6 | Dic199 | C25 | 1 | 1 | yes | characteristic, direct product factor, Hall |
| 7 | C2×C199 | C2×C25 | 1 | 1 | yes | characteristic |
| 8 | C199 | C4×C25 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 9 | C4×C25 | — | 199 | 1 | no | maximal, Hall |
| 10 | C2×C25 | D199 | 1 | 1 | yes | characteristic |
| 11 | C25 | Dic199 | 1 | 1 | yes | characteristic, direct product factor, Sylow |
| 12 | C4×C5 | — | 199 | 1 | no | — |
| 13 | C2×C5 | C5×D199 | 1 | 1 | yes | characteristic |
| 14 | C5 | C5×Dic199 | 1 | 1 | yes | characteristic |
| 15 | C4 | — | 199 | 1 | no | Sylow |
| 16 | C2 | C25×D199 | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2×C25 | D199 |
| commutator, hypocenter | C199 | C4×C25 |
| Frattini | C2×C5 | C5×D199 |
| Fitting | C2×C25×C199 | C2 |
| socle, prime radical, cosocle | C2×C5×C199 | C2×C5 |
| LCS | G ▷ C199 | |
| UCS | C1 ◁ C2×C25 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. C25×C199 | C4 | semidirect |
| 6. Dic199 | C25 | direct (N × H) |
| 8. C199 | C4×C25 | semidirect |
| 11. C25 | Dic199 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×C25×C199 | 2 |
| C5×Dic199 | 5 |
| C4×C25 | 199 |