Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #3484 |
| automorphism | Aut(G) = C215 (order 32768) · Inn(G) = C25 · Out(G) = C210 |
| homology | Abelianization (H1) = C24×C4 · Schur multiplier (H2) = C28 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, socle, cosocle | C23 | C25 |
| commutator | C22 | C24×C4 |
| prime radical | C2×#120 | C22 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1306 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 5 generators on 20 points:
(1,2,4,3)(5,6)(7,11)(8,9)(10,12)(13,14)(15,19)(16,18)(17,20);(6,9)(10,11)(13,14,16,18)(15,17,20,19);(13,15)(14,17)(16,20)(18,19);(5,6)(7,10)(8,9)(11,12)(13,14)(15,17)(16,18)(19,20);(1,3,4,2)(5,7)(6,10)(8,12)(9,11)(13,15)(14,17)(16,20)(18,19)Polycyclic presentation:
2^8|a^2=h,b^2=g,e^2=h,b^a=bf,c^a=cg,e^a=ef,d^b=df88 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#34296, #7625580, #7625629, … |
| maximal normal subgroup of | C2×#34296, #7625580, #7625629, … |
| maximal quotient of | #513621, #513632, #513634, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 27284);