Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #9914 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | #120 |
| commutator, Frattini, cosocle | C23×C4 | C23 |
| prime radical | C2×#447 | C2 |
| LCS | G ▷ C23×C4 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C22 ▷ C1 | |
522 conjugacy classes of subgroups; only the 67 normal subgroups are shown.
This group has 522 conjugacy classes of subgroups — too many to draw. Only its 67 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) = 64 |
A minimal faithful permutation representation — 3 generators on 20 points:
(1,2)(3,4)(5,6)(7,11)(8,10)(9,12)(13,14)(15,17)(16,18)(19,20);(6,10)(7,8)(11,12)(17,20);(2,4)(5,7,9,8)(6,11,12,10)(13,15)(14,17)(16,19)(18,20)Polycyclic presentation:
2^8|c^2=g,d^2=g,b^a=bd,c^a=ce,d^a=dg,f^a=fh,c^b=cf,d^b=dg,d^c=dh40 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#9915, #234459, #234469, … |
| maximal normal subgroup of | C2×#9915, #234459, #234469, … |
| maximal quotient of | #102907, #102909, #102910, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 2903);