Order 400.
76 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C2×#1039 | C2 | 1 | 1 | yes | maximal, characteristic |
| 2 | C2×C5×Dic5 | C2 | 1 | 2 | yes | maximal |
| 3 | C22×C52 | C22 | 1 | 1 | yes | characteristic |
| 4 | #1039 | C4 | 1 | 2 | yes | complemented |
| 5 | C5×Dic5 | C4 | 1 | 4 | yes | complemented |
| 6 | C4×Dic5 | — | 5 | 2 | no | maximal |
| 7 | C2×C52 | C2×C4 | 1 | 1 | yes | characteristic |
| 8 | C2×C52 | C2×C4 | 1 | 2 | yes | — |
| 9 | C2×C4×C5 | — | 5 | 2 | no | — |
| 10 | C2×Dic5 | — | 5 | 2 | no | — |
| 11 | C2×Dic5 | — | 10 | 2 | no | — |
| 12 | C2×Dic5 | D5 | 1 | 2 | yes | — |
| 13 | C52 | C42 | 1 | 1 | yes | characteristic, complemented, Sylow |
| 14 | C22×C5 | — | 2 | 2 | no | — |
| 15 | C22×C5 | C2×D5 | 1 | 2 | yes | — |
| 16 | C4×C5 | — | 5 | 4 | no | — |
| 17 | Dic5 | — | 5 | 4 | no | — |
| 18 | Dic5 | — | 10 | 4 | no | — |
| 19 | Dic5 | Dic5 | 1 | 4 | yes | direct product factor |
| 20 | C42 | — | 25 | 1 | no | Sylow |
| 21 | C2×C5 | — | 2 | 4 | no | — |
| 22 | C2×C5 | — | 2 | 2 | no | — |
| 23 | C2×C5 | C4×D5 | 1 | 2 | yes | — |
| 24 | C2×C5 | C4×D5 | 1 | 2 | yes | — |
| 25 | C2×C5 | C2×Dic5 | 1 | 2 | yes | — |
| 26 | C2×C4 | — | 5 | 2 | no | — |
| 27 | C2×C4 | — | 25 | 1 | no | — |
| 28 | C5 | — | 2 | 2 | no | — |
| 29 | C5 | C4×Dic5 | 1 | 2 | yes | complemented |
| 30 | C22 | D52 | 1 | 1 | yes | characteristic |
| 31 | C4 | — | 5 | 4 | no | — |
| 32 | C4 | — | 25 | 2 | no | — |
| 33 | C2 | D5×Dic5 | 1 | 2 | yes | — |
| 34 | C2 | #6036 | 1 | 1 | yes | characteristic |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C22 | D52 |
| commutator, hypocenter | C52 | C42 |
| Fitting, socle, prime radical, cosocle | C22×C52 | C22 |
| LCS | G ▷ C52 | |
| UCS | C1 ◁ C22 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 4. #1039 | C4 | semidirect |
| 5. C5×Dic5 | C4 | semidirect |
| 13. C52 | C42 | semidirect |
| 19. Dic5 | Dic5 | direct (N × H) |
| 29. C5 | C4×Dic5 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×#1039 | 2 |
| C2×C5×Dic5 | 2 |
| C4×Dic5 | 5 |