Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23912 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C26 |
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 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
689 conjugacy classes of subgroups; only the 135 normal subgroups are shown.
This group has 689 conjugacy classes of subgroups — too many to draw. Only its 135 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) = 64 |
A minimal faithful permutation representation — 4 generators on 20 points:
(2,3)(5,6)(7,15)(8,14)(9,13)(10,12)(11,17)(16,20)(18,19);(1,2,4,3)(5,7)(6,11)(8,16)(9,17)(10,18)(12,20)(13,15)(14,19);(6,12)(8,10)(11,19)(13,14)(15,20)(16,18);(1,3,4,2)(5,8,9,10)(6,12,13,14)(7,16,17,18)(11,20,15,19)Polycyclic presentation:
2^8|b^2=eh,d^2=e,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,g^a=gh,c^b=cg,f^b=fh,d^c=dh,f^c=fh40 conjugacy classes — view the full character table.
| maximal subgroup of | #245723, #245730, #245750, … |
| maximal normal subgroup of | #245723, #245730, #245750, … |
| maximal quotient of | #261085, #261089, #261093, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 17215);