Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #30412 |
| 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 | |
430 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)(7,8)(9,11)(10,12)(13,14)(15,22)(16,18)(17,21)(19,24)(20,25)(23,28)(26,27);(1,2)(3,4)(5,7)(6,10)(8,11)(9,12)(15,23)(19,27)(22,28)(24,26);(2,4)(5,8,9,10)(6,7,11,12)(14,18)(16,25)(19,22)(20,21)(24,26)(27,28);(6,11)(7,12)(13,15,17,23)(14,19,21,27)(16,26,25,24)(18,22,20,28)Polycyclic presentation:
2^8|c^2=e,d^2=h,f^2=h,b^a=be,c^a=cf,d^a=def,f^a=fh,c^b=cg,d^b=deh,f^c=fh,f^d=fh40 conjugacy classes — view the full character table.
| maximal subgroup of | #6632665, #6632678, #6632684, … |
| maximal normal subgroup of | #6632665, #6632678, #6632684, … |
| maximal quotient of | #335864, #335866, #335872, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 23594);