Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24264 |
| 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 | C22×D4 | C23 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C4⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
314 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)(3,8)(4,6)(5,7)(9,10,12,14)(11,13,15,16)(17,18)(19,24)(20,29)(21,31)(22,26)(23,27)(25,30)(28,32);(1,3,5,4)(2,6,7,8)(9,11)(10,13)(12,15)(14,16)(17,19,21,27,22,28,30,20)(18,23,25,24,26,29,31,32);(1,4,5,3)(2,6,7,8)(11,15)(13,16)(17,19,21,27,22,28,30,20)(18,23,25,24,26,29,31,32);(2,7)(6,8)(17,20,30,28,22,27,21,19)(18,24,31,23,26,32,25,29)Polycyclic presentation:
2^8|a^2=g,b^2=e,c^2=e,d^2=fh,e^2=h,f^2=h,b^a=be,c^a=cf,d^a=de,e^a=eh,f^a=fh,c^b=cg58 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#28031, #6457479, #6457507, … |
| maximal normal subgroup of | C2×#28031, #6457479, #6457507, … |
| maximal quotient of | #361093, #362397, #367755, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 21019);