Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23924 |
| 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 | C24 | C2×D4 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×#117 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
337 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)(3,7)(4,5)(6,8)(9,10,12,14)(11,13,15,16)(17,18,23,27)(19,24,20,29)(21,26,22,31)(25,28,32,30);(2,5)(6,7)(9,11)(10,13)(12,15)(14,16)(17,19)(18,24)(20,23)(21,30)(22,28)(25,26)(27,29)(31,32);(11,15)(13,16)(17,20,23,19)(18,25,27,32)(21,30,22,28)(24,31,29,26);(1,3,4,8)(2,6,5,7)(17,21,23,22)(18,26,27,31)(19,28,20,30)(24,32,29,25)Polycyclic presentation:
2^8|a^2=g,c^2=h,d^2=eh,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=cg,d^b=dh,f^c=fh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#27642, #6458626, #6458632, … |
| maximal normal subgroup of | C2×#27642, #6458626, #6458632, … |
| maximal quotient of | #360016, #363367, #366434, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 20630);