Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24269 |
| 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 | C22×D8 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C4×Q8 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
441 conjugacy classes of subgroups; only the 131 normal subgroups are shown.
This group has 441 conjugacy classes of subgroups — too many to draw. Only its 131 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)(5,6,8,9)(7,11,12,10)(13,14,16,17)(15,19,20,18);(6,9)(10,11)(13,15,17,19,16,20,14,18);(2,4)(14,17)(15,18)(19,20);(5,7,8,12)(6,10,9,11)Polycyclic presentation:
2^8|a^2=e,b^2=g,d^2=eh,g^2=h,b^a=be,c^a=cf,d^a=deh,c^b=cg,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #143122, #143124, #264192, … |
| maximal normal subgroup of | #143122, #143124, #264192, … |
| maximal quotient of | #317673, #317674, #317675, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 21182);