Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #3198 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C23×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator | C2×C4 | C23×C4 |
| Frattini, cosocle | C22×C4 | C24 |
| prime radical | C22×D4 | C23 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ #376 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
391 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(1,2,4,3)(6,9)(7,11)(13,14,17,20)(15,22,24,19)(16,26,21,18)(23,28,27,25);(1,3,4,2)(5,6)(7,10)(8,9)(11,12)(13,15,17,24)(14,19,20,22)(16,27,21,23)(18,25,26,28);(6,9)(10,12)(13,16,18,14,17,21,26,20)(15,23,25,22,24,27,28,19);(5,7,8,11)(6,10,9,12)(14,20)(15,24)(16,21)(25,28)Polycyclic presentation:
2^8|a^2=g,b^2=g,c^2=f,d^2=eh,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=ce,d^b=dh,d^c=dh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#22233, #6376271, #6376279, … |
| maximal normal subgroup of | C2×#22233, #6376271, #6376279, … |
| maximal quotient of | #219084, #219091, #219116, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 15221);