Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23860 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C2×#447 | C2 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C22⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
599 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 20 points:
(5,6)(7,9)(8,10)(11,12)(13,14)(15,19)(16,18)(17,20);(1,2)(3,4)(5,7,8,11)(6,9,10,12)(14,18)(15,16)(19,20);(2,4)(6,10)(9,12);(13,15)(16,17)(18,19)Polycyclic presentation:
2^8|b^2=f,e^2=h,b^a=be,c^a=cf,d^a=de,e^a=eh,c^b=cg,d^b=dh,e^b=eh,e^d=eh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#24909, #6438199, #6438206, … |
| maximal normal subgroup of | C2×#24909, #6438199, #6438206, … |
| maximal quotient of | #280331, #280333, #280339, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 17897);