Finite Group DatabasebetaFinite Group Databasebeta| order | 320 |
| automorphism | ? |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| Fitting | C2×C5×D8 ⋊ C2 |
| Sylow | C5 ⋊ #493 |
| subgroup | G/H | |
|---|---|---|
| center | C22 | D4×D5 |
| commutator, cosocle | C2×C4×C5 | C23 |
| Frattini | C2×C4 | C22×D5 |
| Fitting | C2×C5×D8 | C2 |
| socle | C22×C5 | C2×D4 |
| hypercenter | C2×D8 | D5 |
| hypocenter | C5 | #493 |
| LCS | G ▷ C2×C4×C5 ▷ C2×C5 ▷ C5 | |
| UCS | C1 ◁ C22 ◁ C2×C4 ◁ C2×D8 | |
162 conjugacy classes of subgroups.
| minimal degree | μ(G) = 17 |
| transitive degree | μt(G) = 160 |
A minimal faithful permutation representation — 3 generators on 17 points:
(1,2,4,5,3)(7,9)(11,14)(12,17)(15,16);(7,9)(10,11)(12,14)(13,16)(15,17);(2,3)(4,5)(6,7,8,9)Polycyclic presentation:
2^6,5|a^2=e,d^2=f,b^a=be,c^a=ce,g^a=g^4,c^b=cd,d^b=df,d^c=df50 conjugacy classes — view the full character table.
| maximal subgroup of | #10598802, #10599976, #10599979, … |
| maximal normal subgroup of | #10598802, #10599976, #10599979, … |
| maximal quotient of | #10600950, #10600976, #10600983, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(320, 778);