Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 5 |
| isoclinism | isoclinic class of #13561 |
| automorphism | Aut(G) = #72286298 (order 2048) · Inn(G) = C2×AΣL(1,𝔽16) · Out(G) = C24 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C2 | C2×AΣL(1,𝔽16) |
| commutator | C2×D4 | C22×C4 |
| Frattini, cosocle | #127 | C23 |
| prime radical | C2×#453 | C2 |
| LCS | G ▷ C2×D4 ▷ C2×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2 ◁ C23 ◁ C22×C4 ◁ C2×#127 ◁ G | |
| LECS | G ▷ #127 ▷ C2×C4 ▷ C22 ▷ C2 ▷ C1 | |
275 conjugacy classes of subgroups; only the 45 normal subgroups are shown.
This group has 275 conjugacy classes of subgroups — too many to draw. Only its 45 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 16 |
| transitive degree | μt(G) = 16 |
A minimal faithful permutation representation — 3 generators on 16 points:
(1,2)(3,10,12,6)(4,8,14,7)(5,9)(11,16,13,15);(1,3)(2,6)(4,13)(5,11)(7,10)(8,16)(9,15)(12,14);(3,11)(6,15)(10,16)(12,13)Polycyclic presentation:
2^8|a^2=e,f^2=h,b^a=bd,d^a=df,f^a=fg,g^a=gh,c^b=ch,e^b=efh,f^b=fh,g^b=gh,e^d=egh,f^d=fh,f^e=fh28 conjugacy classes — view the full character table.
| maximal subgroup of | #152017, #152018, #152191, … |
| maximal normal subgroup of | #152017, #152018, #152191, … |
| maximal quotient of | #149539, #149643, #149675, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 6549);