Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1812 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C22×C8 · Schur multiplier (H2) = C42 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C2×C4 | #117 |
| commutator | C2×C4 | C22×C8 |
| Frattini, cosocle | C2×C42 | C23 |
| socle | C22 | #382 |
| prime radical | C23 | #117 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C4 ◁ #376 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
155 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 3 generators on 40 points:
(1,2,3,5,4,6,7,8)(9,10)(11,19,22,15)(12,23,25,38)(13,18)(14,17)(16,24,29,39)(20,33)(21,32,36,28)(26,30)(27,34)(31,40)(35,37);(9,11,13,21,14,22,26,36)(10,15,18,28,17,19,30,32)(12,20,24,34,25,35,39,40)(16,27,23,37,29,31,38,33);(9,12)(10,16,17,29)(11,20)(13,24)(14,25)(15,27,19,31)(18,23,30,38)(21,34)(22,35)(26,39)(28,37,32,33)(36,40)Polycyclic presentation:
2^8|a^2=f,b^2=e,c^2=d,e^2=g,f^2=h,b^a=bd,c^a=ce,d^a=dg,f^b=fg,f^c=fg64 conjugacy classes — view the full character table.
| maximal subgroup of | #93306, #93307, #93313, … |
| maximal normal subgroup of | #93306, #93307, #93313, … |
| maximal quotient of | #99276, #99277, #99278, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 1768);