Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1999 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C26 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C24 | C2×D4 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C23×C4 | C23 |
| prime radical | C23×D4 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C2 ▷ C1 | |
619 conjugacy classes of subgroups; only the 167 normal subgroups are shown.
This group has 619 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 — 3 generators on 20 points:
(2,4)(9,10,11,12)(13,14)(15,17)(16,18)(19,20);(1,2,3,4)(5,6)(7,8)(14,17)(18,19);(6,8)(14,18)(16,20)(17,19)Polycyclic presentation:
2^8|a^2=g,b^2=dh,e^2=h,b^a=bd,c^a=ce,e^a=eh,c^b=cf,e^c=eh64 conjugacy classes — view the full character table.
| maximal subgroup of | #94279, #97250, #97253, … |
| maximal normal subgroup of | #94279, #97250, #97253, … |
| maximal quotient of | #115705, #115737, #115739, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 4039);