Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23848 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C22×D4 | C23 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C4×Q8 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
509 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(2,4)(5,6,8,9)(7,11,12,10)(13,14,16,19)(15,21,23,18)(17,20,25,28)(22,27,24,26);(6,9)(10,11)(13,15,16,23)(14,18,19,21)(17,22,25,24)(20,26,28,27);(1,2,3,4)(15,22)(17,25)(18,26)(20,28)(21,27)(23,24);(5,7,8,12)(6,10,9,11)(14,19)(18,21)(20,28)(26,27)Polycyclic presentation:
2^8|a^2=e,b^2=h,c^2=f,d^2=eh,g^2=h,b^a=be,c^a=cf,d^a=de,c^b=cg,g^b=gh,g^c=gh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#25654, #6449966, #6449977, … |
| maximal normal subgroup of | C2×#25654, #6449966, #6449977, … |
| maximal quotient of | #295323, #295324, #295325, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 18642);