Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #9758 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #390 |
| commutator | C42 | C22×C4 |
| Frattini, cosocle | C2×C42 | C23 |
| prime radical | C23 | #124 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
227 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 3 generators on 40 points:
(1,2)(3,7)(4,8)(5,6)(9,10,14,19,15,18,13,28)(11,16,22,32,21,33,29,31)(12,23,26,35,27,39,25,17)(20,36,37,30,24,38,40,34);(1,3,7,2,5,8,4,6)(9,11,13,22,15,21,14,29)(10,16,19,31,18,33,28,32)(12,24,25,40,27,20,26,37)(17,34,23,38,35,30,39,36);(2,6)(3,8)(9,12,13,25,15,27,14,26)(10,17,19,23,18,35,28,39)(11,20,22,37,21,24,29,40)(16,30,31,36,33,34,32,38)Polycyclic presentation:
2^8|a^2=f,b^2=dfg,c^2=egh,d^2=gh,e^2=h,f^2=h,b^a=bd,c^a=ce,d^a=dg,e^a=eh,c^b=cg,d^b=dh,f^b=fh40 conjugacy classes — view the full character table.
| maximal subgroup of | #94562, #94809, #139096, … |
| maximal normal subgroup of | #94562, #94809, #139096, … |
| maximal quotient of | #102043, #102054, #102246, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 2767);