Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #33517 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C26 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C22×D8 |
| commutator, Frattini, cosocle | C2×C8 | C24 |
| LCS | G ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23×C4 ◁ C23×C8 ◁ G | |
| LECS | G ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1 | |
690 conjugacy classes of subgroups; only the 131 normal subgroups are shown.
This group has 690 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) = 32 |
A minimal faithful permutation representation — 4 generators on 20 points:
(1,2)(3,4)(5,6)(7,10)(8,17)(9,11)(12,14)(13,15)(16,18)(19,20);(6,10)(7,14)(8,15)(11,18)(12,13)(16,20)(17,19);(2,4);(6,11)(10,18)(12,19)(13,17)Polycyclic presentation:
2^8|e^2=gh,g^2=h,b^a=be,c^a=cf,d^a=dh,e^a=eg,g^a=gh,e^b=eg,g^b=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #137386, #137390, #484197, … |
| maximal normal subgroup of | #137386, #137390, #484197, … |
| maximal quotient of | #484194, #484540, #484619, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 26505);