Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #30412 |
| 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 | C22×D8 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C4×Q8 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
387 conjugacy classes of subgroups.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 24 points:
(1,2,5,7)(3,4,8,6)(9,10)(11,15)(12,14)(13,16)(17,18,20,21)(19,22,23,24);(1,3,5,8)(2,6,7,4)(9,11)(10,13)(12,16)(14,15)(18,21)(19,22)(23,24);(10,14)(13,15)(17,19)(18,22)(20,23)(21,24);(1,4,5,6)(2,3,7,8)(11,16)(13,15)(17,18,20,21)(19,22,23,24)Polycyclic presentation:
2^8|a^2=ef,b^2=efh,d^2=ef,g^2=h,b^a=be,c^a=cf,d^a=defh,c^b=cg,d^b=de,g^b=gh,g^c=gh40 conjugacy classes — view the full character table.
| maximal subgroup of | #6647800, #6647806, #6647813, … |
| maximal normal subgroup of | #6647800, #6647806, #6647813, … |
| maximal quotient of | #385075, #385078, #385493, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 25647);