Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24274 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C23 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C4⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
289 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2)(3,7)(4,5)(6,8)(9,10,12,14)(11,13,15,16)(17,18,22,26)(19,27,29,24)(20,23,30,32)(21,31,28,25);(2,5)(6,7)(9,11)(10,13)(12,15)(14,16)(17,19,21,20,22,29,28,30)(18,23,25,27,26,32,31,24);(11,15)(13,16)(17,19,28,30,22,29,21,20)(18,23,31,24,26,32,25,27);(1,3,4,8)(2,6,5,7)(17,20,21,29,22,30,28,19)(18,24,25,23,26,27,31,32)Polycyclic presentation:
2^8|a^2=g,b^2=f,c^2=fh,d^2=e,e^2=h,f^2=h,b^a=be,c^a=cf,d^a=de,e^a=eh,f^a=fh,c^b=cg,d^b=dh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#28001, #6457809, #6457820, … |
| maximal normal subgroup of | C2×#28001, #6457809, #6457820, … |
| maximal quotient of | #360934, #362545, #367558, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 20989);