Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #12099 |
| automorphism | Aut(G) = C25×B(4,𝔽2) (order 2048) · Inn(G) = B(4,𝔽2) · Out(G) = C25 |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C22 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | B(4,𝔽2) |
| commutator, Frattini, cosocle | C2×C4⋊C4 | C23 |
| prime radical | #537 | C22 |
| LCS | G ▷ C2×C4⋊C4 ▷ C23 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23 ◁ C2×C4⋊C4 ◁ G | |
| LECS | G ▷ C2×C4⋊C4 ▷ C23 ▷ C2 ▷ C1 | |
190 conjugacy classes of subgroups; only the 35 normal subgroups are shown.
This group has 190 conjugacy classes of subgroups — too many to draw. Only its 35 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) = 64 |
A minimal faithful permutation representation — 3 generators on 24 points:
(2,6)(3,4)(7,8)(9,10)(11,14)(12,15)(13,17)(16,21)(18,23)(19,24)(20,22);(1,2)(3,6)(4,8)(5,7)(9,11,13,18)(10,14,17,23)(12,20,21,19)(15,24,16,22);(1,3,5,4)(2,6,7,8)(10,15)(11,18)(12,21)(14,22)(16,17)(23,24)Polycyclic presentation:
2^8|b^2=h,c^2=f,d^2=f,e^2=h,b^a=bd,c^a=ce,d^a=df,e^a=eh,g^a=gh,c^b=ch,d^b=df,e^b=egh,d^c=dg,e^c=eh,e^d=eh28 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#12146, #484386, #484387, … |
| maximal normal subgroup of | C2×#12146, #484386, #484387, … |
| maximal quotient of | #125671, #125688, #125765, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 5134);