Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 5 |
| isoclinism | isoclinic class of #13595 |
| automorphism | Aut(G) = #72319013 (order 4096) · Inn(G) = C2×#354 · Out(G) = C22×D4 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C2 | C2×#354 |
| commutator | C42 | C22×C4 |
| Frattini, cosocle | #127 | C23 |
| prime radical | #532 | C22 |
| LCS | G ▷ C42 ▷ C2×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2 ◁ C2×C4 ◁ C22×C4 ◁ #532 ◁ G | |
| LECS | G ▷ #127 ▷ C2×C4 ▷ C22 ▷ C2 ▷ C1 | |
163 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 32 |
A minimal faithful permutation representation — 3 generators on 32 points:
(1,2)(3,12,15,23)(4,8)(5,10,20,9)(6,11)(7,14,22,19)(13,28,29,24)(16,30,31,21)(17,26,32,25)(18,27);(1,3,6,14)(2,7)(4,16,18,13)(5,19,20,15)(8,24)(9,12)(10,22)(11,23)(17,29,32,31)(21,27)(25,30)(26,28);(1,4,6,18)(2,8,11,27)(3,13,14,16)(5,17,20,32)(7,21,23,24)(9,25,10,26)(12,28,22,30)(15,29,19,31)Polycyclic presentation:
2^8|a^2=e,b^2=g,c^2=h,d^2=gh,f^2=h,b^a=bd,d^a=df,f^a=fg,g^a=gh,c^b=ch,d^b=dg,e^b=efg,f^b=fh,e^d=egh,f^e=fh28 conjugacy classes — view the full character table.
| maximal subgroup of | #94771, #152075, #152080, … |
| maximal normal subgroup of | #94771, #152075, #152080, … |
| maximal quotient of | #149584, #149616, #149704, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 6584);