Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #12316 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C23 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #447 |
| commutator, Frattini, cosocle | C4×C8 | C23 |
| prime radical | C2×D8 | D4 |
| LCS | G ▷ C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C42 ◁ C8×Q8 ◁ G | |
| LECS | G ▷ C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
158 conjugacy classes of subgroups; only the 45 normal subgroups are shown.
This group has 158 conjugacy classes of subgroups — too many to draw. Only its 45 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 3 generators on 32 points:
(1,2,7,11)(3,12,4,15)(5,10,6,9)(8,14,16,13)(17,18)(19,22)(20,29)(21,25)(23,26)(24,27)(28,31)(30,32);(1,3,7,4)(2,8,11,16)(5,14,6,13)(9,15,10,12)(18,22)(19,26)(20,27)(23,24)(25,31)(28,32)(29,30);(1,4,7,3)(2,8,11,16)(5,13,6,14)(9,15,10,12)Polycyclic presentation:
2^8|a^2=g,b^2=g,c^2=g,d^2=fh,e^2=g,f^2=h,b^a=bd,c^a=ce,d^a=df,e^a=eg,f^a=fh,d^b=df,e^b=eg,f^b=fh,d^c=dg,e^c=eg40 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#12404, #489124, #489126, … |
| maximal normal subgroup of | C2×#12404, #489124, #489126, … |
| maximal quotient of | #125960, #125980, #126050, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 5392);