Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #9519 |
| automorphism | Aut(G) = C23×#45355 (order 2048) · Inn(G) = #386 · Out(G) = C25 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C23 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #386 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C2×C42 | C23 |
| prime radical | #3109 | C2 |
| LCS | G ▷ C22×C4 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
234 conjugacy classes of subgroups; only the 59 normal subgroups are shown.
This group has 234 conjugacy classes of subgroups — too many to draw. Only its 59 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 3 generators on 32 points:
(2,6)(3,10)(4,7)(9,14)(11,12)(13,15)(17,18,20,24,22,26,21,25)(19,27,28,23,29,31,30,32);(1,2,7,14,5,9,4,6)(3,8,10,15,12,16,11,13)(17,19)(18,23,26,32)(20,28)(21,30)(22,29)(24,31,25,27);(1,3)(2,8)(4,11)(5,12)(6,13)(7,10)(9,16)(14,15)(18,24)(20,21)(23,31)(25,26)(27,32)(28,30)Polycyclic presentation:
2^8|a^2=f,b^2=dfg,d^2=g,e^2=g,f^2=h,b^a=bd,c^a=ce,d^a=dg,e^a=egh,e^b=eh,d^c=dh,e^c=eg,f^c=fh37 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#9529, #202064, #202066, … |
| maximal normal subgroup of | C2×#9529, #202064, #202066, … |
| maximal quotient of | #100221, #100225, #100229, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 2517);