Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1462 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C2×C42 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C2×C22⋊C4 |
| commutator | C23 | C2×C42 |
| Frattini, cosocle | C23×C4 | C23 |
| prime radical | C24 | C22×C4 |
| LCS | G ▷ C23 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C22 ▷ C1 | |
377 conjugacy classes of subgroups; only the 143 normal subgroups are shown.
This group has 377 conjugacy classes of subgroups — too many to draw. Only its 143 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:
(5,6,7,10,8,9,11,12)(13,14,16,18,17,19,15,20);(1,2,3,4)(6,9)(7,11);(6,9)(10,12)(13,15,17,16)(14,18,19,20)Polycyclic presentation:
2^8|a^2=e,b^2=f,c^2=gh,e^2=h,b^a=bd,c^a=ch,d^a=dg,e^b=eg64 conjugacy classes — view the full character table.
| maximal subgroup of | #93630, #105896, #105897, … |
| maximal normal subgroup of | #93630, #105896, #105897, … |
| maximal quotient of | #94921, #94949, #94953, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 900);