Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23848 |
| 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 | |
427 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(2,3)(5,6)(7,12)(8,10)(9,11)(13,14,16,19)(15,21,23,18)(17,20,25,27)(22,26,24,28);(1,2,4,3)(5,7,9,8)(6,10,11,12)(13,15)(14,18)(16,23)(17,22)(19,21)(20,28)(24,25)(26,27);(1,2,4,3)(5,8,9,7)(6,10,11,12)(14,19)(15,22)(17,25)(18,26)(21,28)(23,24);(1,3,4,2)(6,11)(10,12)(14,19)(18,21)(20,27)(26,28)Polycyclic presentation:
2^8|a^2=h,b^2=eh,c^2=eh,d^2=fh,g^2=h,b^a=be,c^a=cf,d^a=de,c^b=cg,g^b=gh,g^c=gh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#26799, #6443759, #6443777, … |
| maximal normal subgroup of | C2×#26799, #6443759, #6443777, … |
| maximal quotient of | #311087, #311088, #311095, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 19787);