Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24390 |
| 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, prime radical | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ #376 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
345 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 28 points:
(5,6,9,12)(7,11,8,10)(13,14,16,19)(15,21,23,28)(17,26,25,20)(18,27,22,24);(1,2,3,4)(5,7,9,8)(6,10,12,11)(13,14)(15,22)(16,19)(17,20)(18,23)(21,27)(24,28)(25,26);(2,4)(13,15,17,24,16,23,25,27)(14,18,20,21,19,22,26,28);(5,8,9,7)(6,11,12,10)(14,19)(18,22)(20,26)(21,28)Polycyclic presentation:
2^8|a^2=e,b^2=eg,c^2=f,d^2=eh,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 | C2×#28698, #6466269, #6466276, … |
| maximal normal subgroup of | C2×#28698, #6466269, #6466276, … |
| maximal quotient of | #325167, #325170, #325173, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 21686);