Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #468 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C22×C8 · Schur multiplier (H2) = C2×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C2×C8 | C2×D4 |
| commutator | C2×C4 | C22×C8 |
| Frattini, cosocle | C22×C8 | C23 |
| socle | C22 | C2×C22⋊C8 |
| prime radical | C23 | C2×M16 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C8 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1 | |
167 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 3 generators on 40 points:
(1,2)(3,7)(4,5)(6,8)(9,10,13,18,14,17,27,30,15,19,28,33,12,26,21,36)(11,20,24,35,25,31,38,39,22,34,37,40,23,16,29,32);(2,5)(6,7)(9,11,21,29,12,23,28,37,15,22,27,38,14,25,13,24)(10,16,30,35,26,34,18,32,19,31,36,40,17,20,33,39);(1,3,4,8)(2,6,5,7)(11,22)(16,31)(20,34)(23,25)(24,37)(29,38)(32,39)(35,40)Polycyclic presentation:
2^8|a^2=f,b^2=def,c^2=e,d^2=h,f^2=g,g^2=h,b^a=bd,c^a=ce,d^a=dh,c^b=ch64 conjugacy classes — view the full character table.
| maximal subgroup of | #93699, #93968, #94267, … |
| maximal normal subgroup of | #93699, #93968, #94267, … |
| maximal quotient of | #141845, #141852, #141864, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 6255);