Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23387 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C2×#127 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ #376 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
454 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(1,2,3,4)(5,6)(7,10)(8,9)(11,12)(13,14)(15,18)(16,20)(17,19)(21,25)(22,27)(23,26)(24,28);(6,9)(10,12)(13,15,17,23)(14,18,19,26)(16,21,24,22)(20,25,28,27);(2,4)(15,21)(16,24)(18,25)(20,28)(22,23)(26,27);(5,7,8,11)(6,10,9,12)(14,19)(18,26)(20,28)(25,27)Polycyclic presentation:
2^8|a^2=f,b^2=h,d^2=e,g^2=h,b^a=be,c^a=cf,d^a=dh,c^b=cg,g^b=gh,g^c=gh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#23690, #6432265, #6432274, … |
| maximal normal subgroup of | C2×#23690, #6432265, #6432274, … |
| maximal quotient of | #243576, #243577, #243578, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 16678);