Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #29742 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C22×C4 |
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 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
395 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2)(3,6)(4,5)(7,8)(9,10)(11,14)(12,13)(15,16);(2,5)(6,8)(17,18,20,24,21,23,29,31)(19,25,26,30,27,32,28,22);(1,3)(2,6)(4,7)(5,8)(10,13)(14,16)(17,19,21,27)(18,22,23,30)(20,28,29,26)(24,32,31,25);(3,7)(6,8)(9,11,12,15)(10,14,13,16)(18,23)(22,30)(24,31)(25,32)Polycyclic presentation:
2^8|b^2=g,c^2=h,d^2=f,g^2=h,b^a=be,c^a=cf,c^b=cg,d^b=dh,d^c=de,g^c=gh40 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#30323, #6433862, #6433870, … |
| maximal normal subgroup of | C2×#30323, #6433862, #6433870, … |
| maximal quotient of | #380886, #380887, #380914, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 23311);