Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #7092 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C2×C4 · Schur multiplier (H2) = C2 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #331 |
| commutator | C4×C8 | C2×C4 |
| Frattini, cosocle | C82 | C22 |
| prime radical | #493 | C4 |
| LCS | G ▷ C4×C8 ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C42 ◁ C82 ◁ G | |
| LECS | G ▷ C82 ▷ C42 ▷ C22 ▷ C1 | |
76 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 2 generators on 32 points:
(1,2,3,8,4,7,11,15,5,9,12,16,13,6,10,14)(18,23,24,31)(19,27)(20,21)(25,28,26,32)(29,30);(2,6)(3,10)(4,13)(7,9)(8,16)(11,12)(17,18)(19,28)(20,26)(21,25)(22,24)(23,29)(27,31)(30,32)Polycyclic presentation:
2^8|a^2=d,c^2=fh,d^2=ef,e^2=g,f^2=h,b^a=bc,c^a=ce,e^a=eg,f^a=fg,c^b=cf,d^b=defg,e^b=eg,f^b=fh43 conjugacy classes — view the full character table.
| maximal subgroup of | #94820, #94821, C2×#7092, … |
| maximal normal subgroup of | #94820, #94821, C2×#7092, … |
| maximal quotient of | #92866, #92868, #93065, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 80);