Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #8346 |
| automorphism | Aut(G) = C23×D4×#120 (order 2048) · Inn(G) = #379 · Out(G) = C25 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #379 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C23×C4 | C23 |
| prime radical | #3505 | C2 |
| LCS | G ▷ C22×C4 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C22 ▷ C1 | |
430 conjugacy classes of subgroups; only the 81 normal subgroups are shown.
This group has 430 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) = 16 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 3 generators on 16 points:
(1,2)(3,7,8,5)(4,6)(9,10,13,15,14,11,12,16);(1,3)(2,5)(4,8)(6,7)(9,11)(10,14)(12,16)(13,15);(1,2)(3,5)(4,6)(7,8)(9,12,14,13)(10,15,11,16)Polycyclic presentation:
2^8|a^2=f,c^2=h,d^2=h,f^2=h,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×#8352, #185328, #185329, … |
| maximal normal subgroup of | C2×#8352, #185328, #185329, … |
| maximal quotient of | #96942, #96943, #96944, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 1340);