Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #2403 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C23×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, cosocle | C22×C4 | C24 |
| commutator, socle | C23 | C23×C4 |
| prime radical | C22×D4 | C2×C4 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C22×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
449 conjugacy classes of subgroups; only the 187 normal subgroups are shown.
This group has 449 conjugacy classes of subgroups — too many to draw. Only its 187 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 — 4 generators on 20 points:
(2,3)(5,6)(7,10)(8,9)(11,12)(13,14,18,19,17,16,15,20);(1,2,4,3)(6,9)(10,12)(13,15,17,18)(14,19,16,20);(1,3,4,2)(5,7,8,11)(6,10,9,12)(13,15,17,18)(14,19,16,20);(13,16,18,20,17,14,15,19)Polycyclic presentation:
2^8|a^2=g,b^2=f,c^2=e,d^2=g,g^2=h,b^a=be,c^a=cf,d^b=dh,d^c=dh76 conjugacy classes — view the full character table.
| maximal subgroup of | #122392, #128494, #134788, … |
| maximal normal subgroup of | #122392, #128494, #134788, … |
| maximal quotient of | #212600, #212601, #212602, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 14621);