Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24269 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C23×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C22×D4 | D4 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C4×D4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
387 conjugacy classes of subgroups; only the 127 normal subgroups are shown.
This group has 387 conjugacy classes of subgroups — too many to draw. Only its 127 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)(7,11)(8,10)(9,12)(13,14)(15,18)(16,20)(17,19)(21,25)(22,26)(23,28)(24,27);(5,7,9,8)(6,10,12,11)(13,15,21,22,17,24,16,23)(14,18,25,26,19,27,20,28);(1,2,3,4)(5,7,9,8)(6,11,12,10)(15,22)(16,21)(18,26)(20,25)(23,24)(27,28);(5,8,9,7)(6,11,12,10)(14,19)(18,27)(20,25)(26,28)Polycyclic presentation:
2^8|b^2=egh,c^2=ef,d^2=e,g^2=h,b^a=be,c^a=cf,d^a=deh,c^b=cg,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #143843, #143844, #263763, … |
| maximal normal subgroup of | #143843, #143844, #263763, … |
| maximal quotient of | #325415, #325416, #325417, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 21698);