Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23860 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C2×#121 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C22⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
422 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(5,6)(7,10)(8,9)(11,12)(13,14)(15,24)(16,21)(17,22)(18,27)(19,23)(20,26)(25,28);(1,2)(3,4)(13,15,19,16)(14,20,23,28)(17,26,18,25)(21,27,24,22);(2,4)(6,9)(10,12)(13,16,19,15)(14,21,23,24)(17,26,18,25)(20,27,28,22);(5,7,8,11)(6,10,9,12)(13,17)(15,25)(16,26)(18,19)(20,28)(22,27)Polycyclic presentation:
2^8|b^2=h,c^2=h,d^2=f,e^2=h,b^a=be,c^a=cf,d^a=de,e^a=eh,c^b=cg,d^b=dh,e^b=eh,e^d=eh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#26568, #6439297, #6439301, … |
| maximal normal subgroup of | C2×#26568, #6439297, #6439301, … |
| maximal quotient of | #309608, #309610, #309635, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 19556);