Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #3532 |
| automorphism | Aut(G) order 131072 |
| 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×#540 | C2 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1195 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 20 points:
(1,2,4,3)(5,6,9,7)(8,11,12,10)(14,17)(15,16);(6,7)(10,11)(13,14,18,17)(15,20,16,19);(1,3,4,2)(13,15,18,16)(14,19,17,20);(5,7,9,6)(8,11,12,10)(13,16,18,15)(14,20,17,19);(5,8,9,12)(6,10,7,11)(13,17,18,14)(15,20,16,19)Polycyclic presentation:
2^8|a^2=h,b^2=g,c^2=fh,d^2=f,e^2=f,b^a=bf,c^a=cg,d^a=dg,e^a=ef,c^b=cg,d^b=df76 conjugacy classes — view the full character table.
| maximal subgroup of | #6388051, #6388061, #6388135, … |
| maximal normal subgroup of | #6388051, #6388061, #6388135, … |
| maximal quotient of | #513799, #513890, #513905, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 27411);