Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1714 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C22×C8 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C23 | #127 |
| 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 | |
263 conjugacy classes of subgroups; only the 95 normal subgroups are shown.
This group has 263 conjugacy classes of subgroups — too many to draw. Only its 95 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)(5,6)(7,11)(8,12)(9,10)(13,14)(15,21)(16,18)(17,25)(19,24)(20,22)(23,27)(26,28);(2,4)(5,7,11,6,9,12,8,10)(14,18)(19,26)(20,25)(21,27);(6,10)(7,12)(13,15,22,28,16,23,17,24)(14,19,25,27,18,26,20,21)Polycyclic presentation:
2^8|a^2=f,b^2=dfgh,c^2=egh,d^2=g,e^2=h,b^a=bd,c^a=ce,d^a=dg,e^a=eh,c^b=cg52 conjugacy classes — view the full character table.
| maximal subgroup of | #92842, #139090, #139091, … |
| maximal normal subgroup of | #92842, #139090, #139091, … |
| maximal quotient of | #102115, #102139, #102163, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 2823);