Finite Group DatabasebetaFinite Group Databasebeta| order | 320 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| Fitting | C4×C5×D4 ⋊ C2 |
| Sylow | C5 ⋊ #529 |
| subgroup | G/H | |
|---|---|---|
| center | C2×C4 | C22×D5 |
| commutator, socle, cosocle | C22×C5 | C24 |
| Frattini | C22 | C23×D5 |
| Fitting | C4×C5×D4 | C2 |
| prime radical | #4084 | C2 |
| hypercenter | C4×D4 | D5 |
| hypocenter | C5 | #529 |
| LCS | G ▷ C22×C5 ▷ C5 | |
| UCS | C1 ◁ C2×C4 ◁ C4×D4 | |
234 conjugacy classes of subgroups; only the 101 normal subgroups are shown.
This group has 234 conjugacy classes of subgroups — too many to draw. Only its 101 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 21 |
| transitive degree | μt(G) = 160 |
A minimal faithful permutation representation — 4 generators on 21 points:
(1,2,4,5,3)(7,11)(8,12)(15,21)(19,20);(14,17,18,16)(15,20,21,19);(6,8,9,12)(7,10,11,13)(14,16,18,17)(15,19,21,20);(2,3)(4,5)(6,7)(8,10)(9,11)(12,13)(14,15)(16,19)(17,20)(18,21)Polycyclic presentation:
2^6,5|b^2=f,c^2=e,d^a=df,g^a=g^4,d^b=def68 conjugacy classes — view the full character table.
| maximal subgroup of | #10598962, #10598963, #10598970, … |
| maximal normal subgroup of | #10598962, #10598963, #10598970, … |
| maximal quotient of | #10605171, C4×#4025, #10605211, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(320, 1229);