Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #1347 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C42 · Schur multiplier (H2) = C2 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C2×C4 | #102 |
| commutator | C2×C8 | C42 |
| Frattini, cosocle | C2×C4×C8 | C22 |
| socle | C22 | #340 |
| prime radical | C23 | #107 |
| LCS | G ▷ C2×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C4 ◁ C2×C42 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C2×C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
97 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 2 generators on 32 points:
(1,2,4,7,5,8,12,15)(3,9,11,16,10,6,13,14)(17,18,21,25)(19,20,27,29)(22,24,30,32)(23,31,28,26);(1,3)(2,6,8,9)(4,11)(5,10)(7,14,15,16)(12,13)(17,19,22,26,23,24,29,25,21,27,30,31,28,32,20,18)Polycyclic presentation:
2^8|a^2=d,b^2=e,c^2=fh,d^2=gh,e^2=f,f^2=h,b^a=bc,c^a=cf,e^a=efgh,f^a=fh,c^b=cg58 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#7290, #127880, #127881, … |
| maximal normal subgroup of | C2×#7290, #127880, #127881, … |
| maximal quotient of | #93407, #93429, #93456, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 278);