Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #32929 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C23×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 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
483 conjugacy classes of subgroups; only the 167 normal subgroups are shown.
This group has 483 conjugacy classes of subgroups — too many to draw. Only its 167 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 20 points:
(1,2)(3,4)(5,6)(7,10)(8,9)(11,12)(13,14,18,19)(15,20,16,17);(6,9)(10,12)(13,15,17,14,18,16,20,19);(5,7,8,11)(6,10,9,12)(13,16,17,19,18,15,20,14);(2,4)Polycyclic presentation:
2^8|a^2=h,b^2=f,c^2=e,e^2=h,f^2=h,b^a=be,c^a=cf,d^a=dg,e^a=eh,f^a=fh76 conjugacy classes — view the full character table.
| maximal subgroup of | #102149, #102154, #102161, … |
| maximal normal subgroup of | #102149, #102154, #102161, … |
| maximal quotient of | #350888, #350889, #350894, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 26031);