Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23912 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C27 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#120 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
943 conjugacy classes of subgroups; only the 143 normal subgroups are shown.
This group has 943 conjugacy classes of subgroups — too many to draw. Only its 143 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 32 |
A minimal faithful permutation representation — 4 generators on 20 points:
(6,10)(8,15)(11,19)(12,16)(14,17)(18,20);(1,2)(3,4)(7,13)(8,15)(10,16)(11,20);(2,4)(5,6)(7,11)(8,16)(9,12)(10,15)(13,20)(14,18)(17,19);(5,7,9,13)(6,11,12,20)(8,17,15,14)(10,18,16,19)Polycyclic presentation:
2^8|d^2=h,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=cg,d^b=dh,f^b=fh,e^c=eh,f^c=fh,f^d=fh40 conjugacy classes — view the full character table.
| maximal subgroup of | #139736, #139752, #144375, … |
| maximal normal subgroup of | #139736, #139752, #144375, … |
| maximal quotient of | #245171, #245178, #245183, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 16903);