Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24390 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | #2619 | C2 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×#117 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
576 conjugacy classes of subgroups; only the 131 normal subgroups are shown.
This group has 576 conjugacy classes of subgroups — too many to draw. Only its 131 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:
(5,6)(7,11)(8,9)(10,12)(13,14,18,21)(15,19,23,26)(16,25,20,17)(22,28,27,24);(1,2)(3,4)(6,9)(10,11)(13,15)(14,19)(16,22)(17,24)(18,23)(20,27)(21,26)(25,28);(2,4)(13,16,17,14,18,20,25,21)(15,22,24,19,23,27,28,26);(5,7,8,12)(6,10,9,11)(15,23)(19,26)(22,27)(24,28)Polycyclic presentation:
2^8|a^2=h,c^2=f,d^2=e,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=cg,d^b=dh46 conjugacy classes — view the full character table.
| maximal subgroup of | #139469, #347159, C2×#25607, … |
| maximal normal subgroup of | #139469, #347159, C2×#25607, … |
| maximal quotient of | #293676, #293681, #293686, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 18595);