Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1468 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C2×C42 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C2×C22⋊C4 |
| commutator | C23 | C2×C42 |
| Frattini, cosocle | C23×C4 | C23 |
| prime radical | C25 | C2×C4 |
| LCS | G ▷ C23 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C22 ▷ C1 | |
355 conjugacy classes of subgroups; only the 99 normal subgroups are shown.
This group has 355 conjugacy classes of subgroups — too many to draw. Only its 99 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 3 generators on 20 points:
(1,2,4,3)(5,6,8,10)(7,11,12,9)(14,18)(15,16);(5,7)(6,9,10,11)(8,12)(13,14,16,20,17,18,15,19);(1,3,4,2)(13,15,17,16)(14,19,18,20)Polycyclic presentation:
2^8|a^2=e,b^2=f,c^2=eg,f^2=h,b^a=bd,c^a=ch,f^a=fg,d^b=dg64 conjugacy classes — view the full character table.
| maximal subgroup of | #97782, #97785, #97787, … |
| maximal normal subgroup of | #97782, #97785, #97787, … |
| maximal quotient of | #96681, #96683, #96746, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 1143);