Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #8346 |
| automorphism | Aut(G) = C23×D43 (order 4096) · Inn(G) = #379 · Out(G) = C26 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #379 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C2×C42 | C23 |
| prime radical | #532 | C22 |
| LCS | G ▷ C22×C4 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
355 conjugacy classes of subgroups; only the 81 normal subgroups are shown.
This group has 355 conjugacy classes of subgroups — too many to draw. Only its 81 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 3 generators on 24 points:
(1,2,5,7,6,3,4,8)(10,14)(12,19)(15,23)(16,20)(17,21)(22,24);(1,3)(2,6)(4,8)(5,7)(9,10)(11,15)(12,20)(13,16)(14,19)(17,22)(18,24)(21,23);(1,4,6,5)(2,7,3,8)(9,11,13,18)(10,15,16,24)(12,21,19,17)(14,22,20,23)Polycyclic presentation:
2^8|a^2=f,c^2=h,d^2=h,f^2=gh,b^a=bd,c^a=ce,d^a=dg,d^b=dh,e^b=eg,f^b=fgh,d^c=dg46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#8357, #185379, #185380, … |
| maximal normal subgroup of | C2×#8357, #185379, #185380, … |
| maximal quotient of | #96942, #96945, #97132, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 1345);