Finite Group DatabasebetaFinite Group Databasebeta| order | 320 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| Fitting | C5×#126 ⋊ C2 |
| Sylow | C5 ⋊ #552 |
| subgroup | G/H | |
|---|---|---|
| center, Frattini | C22 | C23×D5 |
| commutator, socle, cosocle | C22×C5 | C24 |
| Fitting | C5×#126 | C2 |
| prime radical | C2×C22⋊D5 | C22 |
| hypercenter | #126 | D5 |
| hypocenter | C5 | #552 |
| LCS | G ▷ C22×C5 ▷ C5 | |
| UCS | C1 ◁ C22 ◁ #126 | |
214 conjugacy classes of subgroups; only the 95 normal subgroups are shown.
This group has 214 conjugacy classes of subgroups — too many to draw. Only its 95 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)(6,8,9,13)(7,11,10,12)(14,16)(15,18)(17,20)(19,21);(7,10)(11,12)(14,15,17,19)(16,18,20,21);(6,7,9,10)(8,12,13,11)(16,20)(18,21);(2,3)(4,5)(16,20)(18,21)Polycyclic presentation:
2^6,5|b^2=e,c^2=ef,d^2=e,d^a=def,g^a=g^4,c^b=ce,d^b=df53 conjugacy classes — view the full character table.
| maximal subgroup of | #10618011, C2×#66042, #10618017, … |
| maximal normal subgroup of | #10618011, C2×#66042, #10618017, … |
| maximal quotient of | #10605995, #10605997, #10605999, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(320, 1380);