Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #11521 |
| automorphism | Aut(G) = #72303759 (order 2048) · Inn(G) = #410 · Out(G) = C25 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C22 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C4 | #410 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C2×M16 | C23 |
| socle | C2 | #1464 |
| prime radical | C24 | M16 |
| LCS | G ▷ C22×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C4 ◁ C42 ◁ C4×M16 ◁ G | |
| LECS | G ▷ C2×M16 ▷ C2×C4 ▷ C2 ▷ C1 | |
165 conjugacy classes of subgroups; only the 49 normal subgroups are shown.
This group has 165 conjugacy classes of subgroups — too many to draw. Only its 49 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) = 16 |
A minimal faithful permutation representation — 3 generators on 16 points:
(1,2,3,8,4,9,11,16,5,6,10,13,12,7,14,15);(2,6)(7,9);(2,7,6,9)(3,10)(8,16,13,15)(11,14)Polycyclic presentation:
2^8|a^2=e,c^2=f,e^2=g,g^2=h,b^a=bd,c^a=cg,d^a=df,f^a=fh,e^b=ef,e^c=eh,e^d=eh40 conjugacy classes — view the full character table.
| maximal subgroup of | #133259, #133260, #133261, … |
| maximal normal subgroup of | #133259, #133260, #133261, … |
| maximal quotient of | #124679, #124706, #124729, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 4509);