Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #15257 |
| automorphism | Aut(G) order 131072 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C23×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C24 | C24 |
| prime radical | C25 | C23 |
| LCS | G ▷ C24 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C24 ▷ C1 | |
693 conjugacy classes of subgroups; only the 163 normal subgroups are shown.
This group has 693 conjugacy classes of subgroups — too many to draw. Only its 163 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(2,4)(5,6,9,8)(7,11,12,10)(13,14,17,16)(15,18,19,20)(21,22,24,26)(23,25,27,28);(7,12)(10,11)(14,16)(15,19)(21,23,24,27)(22,25,26,28);(5,7)(6,10)(8,11)(9,12)(13,15)(14,18)(16,20)(17,19)(21,23)(22,25)(24,27)(26,28);(1,2)(3,4)(5,8,9,6)(7,11,12,10)(13,16,17,14)(15,20,19,18)(21,22)(23,25)(24,26)(27,28)Polycyclic presentation:
2^8|a^2=g,b^2=efg,d^2=ef,b^a=be,c^a=cf,d^a=dh,c^b=cg,d^b=de58 conjugacy classes — view the full character table.
| maximal subgroup of | #142554, C2×#15722, #609370, … |
| maximal normal subgroup of | #142554, C2×#15722, #609370, … |
| maximal quotient of | #154752, #154845, #154865, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 8710);