Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #8603 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C2×C4 | #117 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C2×C42 | C23 |
| socle | C22 | #383 |
| prime radical | C23 | #117 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C4 ◁ C2×#97 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
129 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 3 generators on 32 points:
(1,2)(3,11,14,15)(4,7)(5,9)(6,10)(8,13,16,12)(17,18,20,23,21,24,27,30)(19,22,26,29,25,28,31,32);(2,7,10,9)(8,15,16,11)(17,19)(18,22)(20,26)(21,25)(23,29)(24,28)(27,31)(30,32);(1,3,4,12,6,14,5,13)(2,8,9,11,10,16,7,15)(19,25)(22,28)(26,31)(29,32)Polycyclic presentation:
2^8|a^2=f,b^2=de,c^2=d,d^2=g,e^2=g,f^2=h,b^a=bd,c^a=ce,d^a=dg,c^b=ch,f^c=fg52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#8802, #191290, #191291, … |
| maximal normal subgroup of | C2×#8802, #191290, #191291, … |
| maximal quotient of | #99293, #99294, #108409, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 1790);