Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1685 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C2×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C23 | #121 |
| commutator | C42 | C22×C4 |
| Frattini, cosocle | C2×C42 | C23 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
209 conjugacy classes of subgroups; only the 87 normal subgroups are shown.
This group has 209 conjugacy classes of subgroups — too many to draw. Only its 87 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 3 generators on 28 points:
(1,2,3,4)(6,9)(7,11)(10,12)(13,14)(15,21)(16,18)(17,25)(19,23)(20,24)(22,28)(26,27);(5,6,7,9,8,10,11,12)(14,18)(19,27)(20,25)(21,28);(6,10)(9,12)(13,15,16,22)(14,19,18,27)(17,26,24,23)(20,28,25,21)Polycyclic presentation:
2^8|a^2=f,b^2=dh,c^2=h,d^2=g,e^2=h,b^a=bd,c^a=ce,d^a=dg,e^a=eh,c^b=cg,e^c=eh46 conjugacy classes — view the full character table.
| maximal subgroup of | #131779, #131780, #145332, … |
| maximal normal subgroup of | #131779, #131780, #145332, … |
| maximal quotient of | #98869, #98885, #98941, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 1643);