Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #8674 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #380 |
| commutator | C42 | C22×C4 |
| Frattini, cosocle | C2×C42 | C23 |
| prime radical | #532 | C22 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
209 conjugacy classes of subgroups; only the 71 normal subgroups are shown.
This group has 209 conjugacy classes of subgroups — too many to draw. Only its 71 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 3 generators on 40 points:
(1,2)(3,5)(4,6)(7,8)(9,10)(11,20)(12,25,27,32)(13,28)(14,18)(15,19)(16,22)(17,26,33,29)(21,30,37,40)(23,31)(24,35)(34,36,39,38);(2,5)(6,7)(9,11,13,22,15,24,14,23)(10,16,18,20,19,31,28,35)(12,21,26,36,27,37,29,38)(17,30,32,34,33,40,25,39);(2,6)(4,8)(5,7)(9,12)(10,17)(11,21)(13,26)(14,29)(15,27)(16,30)(18,32)(19,33)(20,34)(22,36)(23,38)(24,37)(25,28)(31,40)(35,39)Polycyclic presentation:
2^8|a^2=f,b^2=dh,d^2=g,e^2=gh,b^a=bd,c^a=ce,d^a=dg,e^a=eh,e^c=egh,f^c=fg46 conjugacy classes — view the full character table.
| maximal subgroup of | #131726, #131727, #131728, … |
| maximal normal subgroup of | #131726, #131727, #131728, … |
| maximal quotient of | #98892, #98900, #98908, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 1666);