Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #9415 |
| automorphism | Aut(G) = C22×#4933776 (order 2048) · Inn(G) = #386 · Out(G) = C22×D4 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C23 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #386 |
| commutator | C42 | C22×C4 |
| Frattini, cosocle | C2×C42 | C23 |
| prime radical | #3184 | C2 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
221 conjugacy classes of subgroups; only the 57 normal subgroups are shown.
This group has 221 conjugacy classes of subgroups — too many to draw. Only its 57 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 3 generators on 32 points:
(1,2,7,10)(3,6,9,5)(4,11)(8,12)(13,15)(14,16)(17,18)(19,26,27,30)(20,23,28,29)(21,24)(22,25)(31,32);(1,3,5,2,7,9,6,10)(4,11,13,8,14,16,12,15)(17,19,21,29,22,27,31,23)(18,20,24,30,25,28,32,26);(1,4)(2,8)(3,11)(5,13)(6,12)(7,14)(9,16)(10,15)(17,20)(18,23)(19,24)(21,30)(22,28)(25,29)(26,31)(27,32)Polycyclic presentation:
2^8|a^2=f,b^2=dfg,d^2=gh,e^2=g,b^a=bd,c^a=ce,d^a=dg,e^a=eh,d^b=dh,e^b=egh,f^b=fh,d^c=dgh,e^c=eg,f^c=fgh34 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#9417, #200696, #200698, … |
| maximal normal subgroup of | C2×#9417, #200696, #200698, … |
| maximal quotient of | #100091, #100093, #100098, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 2405);