Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23860 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C22×C4 |
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 ◁ C4×C4⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
357 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2,4,5)(3,7,8,6)(9,10,12,14)(11,15,16,13)(17,18,21,26)(19,27,29,23)(20,24,22,25)(28,31,30,32);(2,5)(6,7)(9,11,12,16)(10,13,14,15)(17,19,21,29)(18,23,26,27)(20,28,22,30)(24,32,25,31);(10,14)(13,15)(17,20)(18,24)(21,22)(25,26)(28,30)(31,32);(1,3,4,8)(2,6,5,7)(10,14)(13,15)(17,20,21,22)(18,25,26,24)(19,28,29,30)(23,31,27,32)Polycyclic presentation:
2^8|a^2=e,b^2=fh,d^2=ef,g^2=h,b^a=be,c^a=cf,d^a=de,c^b=cg,g^b=gh,d^c=dh,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#27442, #6450212, #6450217, … |
| maximal normal subgroup of | C2×#27442, #6450212, #6450217, … |
| maximal quotient of | #361422, #363618, #366153, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 20430);