Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #9755 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C2×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 | #121 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
209 conjugacy classes of subgroups; only the 65 normal subgroups are shown.
This group has 209 conjugacy classes of subgroups — too many to draw. Only its 65 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 3 generators on 40 points:
(1,2,3,5,4,6,8,7)(9,10)(11,20,23,31)(12,24)(13,18)(14,29)(15,19)(16,22,32,28)(17,26)(21,30,36,40)(25,33)(27,38)(34,39,37,35);(2,5,6,7)(9,11,13,28,15,23,14,22)(10,16,18,31,19,32,29,20)(12,21,25,39,27,36,26,35)(17,30,24,37,33,40,38,34);(2,6)(5,7)(9,12,14,26,15,27,13,25)(10,17,18,24,19,33,29,38)(11,21,22,35,23,36,28,39)(16,30,31,37,32,40,20,34)Polycyclic presentation:
2^8|a^2=f,b^2=dfg,c^2=eg,d^2=gh,e^2=h,f^2=g,b^a=bd,c^a=ce,d^a=dg,e^a=eh,d^b=dh,f^b=fh52 conjugacy classes — view the full character table.
| maximal subgroup of | #138726, #138730, #138731, … |
| maximal normal subgroup of | #138726, #138730, #138731, … |
| maximal quotient of | #102034, #102035, #102036, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 2751);