Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #30396 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C2×C42 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C4×Q8 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
356 conjugacy classes of subgroups; only the 117 normal subgroups are shown.
This group has 356 conjugacy classes of subgroups — too many to draw. Only its 117 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) = 256 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2,5,7)(3,6,4,8)(10,13)(11,15)(17,18)(19,25)(20,23)(21,24)(22,27)(26,30)(28,32)(29,31);(1,2)(3,6)(4,8)(5,7)(9,10,12,13)(11,14,15,16)(17,19)(18,22)(20,27)(21,26)(23,25)(24,32)(28,29)(30,31);(1,3,5,4)(2,6,7,8)(9,11,12,15)(10,14,13,16)(18,23)(19,26)(21,29)(22,30)(25,32)(27,28);(1,4,5,3)(2,6,7,8)(10,13)(14,16)(19,27)(22,25)(26,28)(30,32)Polycyclic presentation:
2^8|a^2=ef,b^2=fh,c^2=eh,d^2=ef,g^2=h,b^a=be,c^a=cf,d^a=def,c^b=cg,d^b=de,g^b=gh,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #123076, #123086, #125811, … |
| maximal normal subgroup of | #123076, #123086, #125811, … |
| maximal quotient of | #385098, #386956, #387335, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 25658);