Finite Group DatabasebetaFinite Group DatabasebetaOrder 1800.
84 conjugacy classes of subgroups.
| # | subgroup | G/H | class size | multiplicity | normal? | properties |
|---|---|---|---|---|---|---|
| 1 | C3×C5×A5 | C2 | 1 | 1 | yes | maximal, characteristic, complemented |
| 2 | C5⋊S5 | C3 | 1 | 1 | yes | maximal, characteristic, direct product factor |
| 3 | C3×C5⋊S4 | — | 5 | 1 | no | maximal |
| 4 | C3×S5 | — | 5 | 1 | no | maximal |
| 5 | C3×#1042 | — | 6 | 1 | no | maximal |
| 6 | C5×A5 | C2×C3 | 1 | 1 | yes | characteristic, complemented |
| 7 | C3×C5×A4 | — | 5 | 1 | no | — |
| 8 | C3×D3×D5 | — | 10 | 1 | no | maximal |
| 9 | C3×A5 | D5 | 1 | 1 | yes | characteristic, complemented |
| 10 | C3×C5×D5 | — | 6 | 1 | no | — |
| 11 | C5⋊S4 | — | 5 | 1 | no | — |
| 12 | S5 | — | 5 | 1 | no | — |
| 13 | C3×C22⋊D5 | — | 15 | 1 | no | — |
| 14 | #1042 | — | 6 | 1 | no | — |
| 15 | C3×D15 | — | 10 | 1 | no | — |
| 16 | C3×C5×D3 | — | 10 | 1 | no | — |
| 17 | C32×D5 | — | 10 | 1 | no | — |
| 18 | C3×C52 | — | 6 | 1 | no | — |
| 19 | C3×S4 | — | 25 | 1 | no | Hall |
| 20 | C22×C3×C5 | — | 5 | 1 | no | — |
| 21 | C2×C3×D5 | — | 15 | 1 | no | — |
| 22 | C5×A4 | — | 5 | 1 | no | — |
| 23 | C5×A4 | — | 10 | 1 | no | — |
| 24 | D3×D5 | — | 10 | 1 | no | — |
| 25 | C3×AGL(1,𝔽5) | — | 30 | 1 | no | — |
| 26 | A5 | C3×D5 | 1 | 1 | yes | characteristic, complemented |
| 27 | C3×Dic5 | — | 15 | 1 | no | — |
| 28 | C5×D5 | — | 6 | 1 | no | — |
| 29 | C32×C5 | — | 10 | 1 | no | — |
| 30 | C22⋊D5 | — | 15 | 1 | no | — |
| 31 | C2×C3×D3 | — | 50 | 1 | no | — |
| 32 | C3×A4 | — | 5 | 1 | no | — |
| 33 | C2×C3×C5 | — | 15 | 1 | no | — |
| 34 | D15 | — | 10 | 1 | no | — |
| 35 | C3×D5 | — | 6 | 1 | no | — |
| 36 | C3×D5 | — | 10 | 1 | no | — |
| 37 | C3×D5 | — | 10 | 1 | no | — |
| 38 | C3×D5 | — | 20 | 1 | no | — |
| 39 | C5×D3 | — | 10 | 1 | no | — |
| 40 | C52 | — | 6 | 1 | no | Sylow |
| 41 | S4 | — | 25 | 1 | no | — |
| 42 | C3×D4 | — | 75 | 1 | no | — |
| 43 | C22×C5 | — | 5 | 1 | no | — |
| 44 | C2×D5 | — | 15 | 1 | no | — |
| 45 | AGL(1,𝔽5) | — | 30 | 1 | no | — |
| 46 | Dic5 | — | 15 | 1 | no | — |
| 47 | C2×C32 | — | 50 | 1 | no | — |
| 48 | C3×D3 | — | 10 | 1 | no | — |
| 49 | C3×D3 | — | 50 | 1 | no | — |
| 50 | C3×C5 | — | 6 | 1 | no | — |
| 51 | C3×C5 | — | 10 | 1 | no | — |
| 52 | C3×C5 | — | 20 | 1 | no | — |
| 53 | C3×C5 | — | 24 | 1 | no | — |
| 54 | C3×C5 | S5 | 1 | 1 | yes | characteristic, complemented |
| 55 | C22×C3 | — | 5 | 1 | no | — |
| 56 | C22×C3 | — | 75 | 1 | no | — |
| 57 | C2×D3 | — | 50 | 1 | no | — |
| 58 | A4 | — | 5 | 1 | no | — |
| 59 | A4 | — | 10 | 1 | no | — |
| 60 | C3×C4 | — | 75 | 1 | no | — |
| 61 | C2×C5 | — | 15 | 1 | no | — |
| 62 | D5 | — | 6 | 1 | no | — |
| 63 | D5 | — | 10 | 1 | no | — |
| 64 | C32 | — | 10 | 1 | no | Sylow |
| 65 | D4 | — | 75 | 1 | no | Sylow |
| 66 | C2×C3 | — | 15 | 1 | no | — |
| 67 | C2×C3 | — | 50 | 1 | no | — |
| 68 | C2×C3 | — | 50 | 1 | no | — |
| 69 | C2×C3 | — | 100 | 1 | no | — |
| 70 | D3 | — | 10 | 1 | no | — |
| 71 | D3 | — | 50 | 1 | no | — |
| 72 | C5 | — | 6 | 1 | no | — |
| 73 | C5 | — | 24 | 1 | no | — |
| 74 | C5 | C3×S5 | 1 | 1 | yes | characteristic, complemented |
| 75 | C22 | — | 5 | 1 | no | — |
| 76 | C22 | — | 75 | 1 | no | — |
| 77 | C4 | — | 75 | 1 | no | — |
| 78 | C3 | — | 10 | 1 | no | — |
| 79 | C3 | — | 20 | 1 | no | — |
| 80 | C3 | C5⋊S5 | 1 | 1 | yes | characteristic, direct product factor |
| 81 | C2 | — | 15 | 1 | no | — |
| 82 | C2 | — | 50 | 1 | no | — |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C3 | C5⋊S5 |
| commutator, cosocle, hypocenter | C5×A5 | C2×C3 |
| Frattini | C1 | G |
| Fitting | C3×C5 | S5 |
| socle | C3×C5×A5 | C2 |
| LCS | G ▷ C5×A5 | |
| UCS | C1 ◁ C3 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C3×C5×A5 | C2 | semidirect |
| 2. C5⋊S5 | C3 | direct (N × H) |
| 6. C5×A5 | C2×C3 | semidirect |
| 9. C3×A5 | D5 | semidirect |
| 26. A5 | C3×D5 | semidirect |
| 54. C3×C5 | S5 | semidirect |
| 74. C5 | C3×S5 | semidirect |
| 80. C3 | C5⋊S5 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C3×C5×A5 | 2 |
| C5⋊S5 | 3 |
| C3×C5⋊S4 | 5 |
| C3×S5 | 5 |
| C3×#1042 | 6 |
| C3×D3×D5 | 10 |