Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of AGL(1,ℤ/8) |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C2×C4×C8 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C22×C4 | C2×D4 |
| commutator | C4 | C2×C4×C8 |
| Frattini, cosocle | C2×C42 | C23 |
| socle, prime radical | C23 | C4×D4 |
| LCS | G ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C4 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
215 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 3 generators on 20 points:
(5,6,7,11,8,10,12,9)(13,14,16,19,17,15,18,20);(1,2,3,4)(6,9)(7,12)(10,11);(6,10)(9,11)(13,15,16,20,17,14,18,19)Polycyclic presentation:
2^8|a^2=e,b^2=f,c^2=deg,d^2=g,e^2=h,b^a=bd,c^a=cg,d^b=dg,e^b=eg88 conjugacy classes — view the full character table.
| maximal subgroup of | #128691, #128756, #129029, … |
| maximal normal subgroup of | #128691, #128756, #129029, … |
| maximal quotient of | #96892, #96895, #96907, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 1273);