Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #12028 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C2 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#106 |
| commutator | C2×C8 | C22×C4 |
| Frattini, cosocle | C4×C8 | C23 |
| prime radical | C23 | #106 |
| LCS | G ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
104 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 3 generators on 32 points:
(1,2,4,7,5,8,11,14)(3,6,10,13,9,12,15,16)(17,18,20,24,23,26,22,32)(19,27,28,31,29,30,25,21);(1,3)(2,6)(4,10)(5,9)(7,13)(8,12)(11,15)(14,16)(17,19,21,26,22,28,30,32,23,29,31,18,20,25,27,24);(3,9)(6,12)(10,15)(13,16)(17,20,23,22)(18,24,26,32)(19,28,29,25)(21,27,31,30)Polycyclic presentation:
2^8|a^2=e,b^2=d,c^2=h,d^2=f,e^2=g,f^2=h,b^a=bd,d^a=df,f^a=fh,c^b=cg,e^b=eh46 conjugacy classes — view the full character table.
| maximal subgroup of | #136462, #136463, #136466, … |
| maximal normal subgroup of | #136462, #136463, #136466, … |
| maximal quotient of | #126709, #129127, #134690, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 5017);