Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23391 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C24 | C2×D4 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
473 conjugacy classes of subgroups; only the 179 normal subgroups are shown.
This group has 473 conjugacy classes of subgroups — too many to draw. Only its 179 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) = 128 |
A minimal faithful permutation representation — 4 generators on 20 points:
(1,2,3,4)(5,6)(7,12)(8,10)(9,11);(5,7,9,8)(6,10,11,12)(14,17)(15,19)(18,20);(2,4)(5,8,9,7)(6,10,11,12)(13,14)(15,20)(16,18)(17,19);(14,18)(17,20)Polycyclic presentation:
2^8|a^2=f,b^2=e,c^2=e,g^2=h,b^a=be,c^a=cf,c^b=cg,g^b=gh,d^c=dh,g^c=gh52 conjugacy classes — view the full character table.
| maximal subgroup of | #101303, #101304, #103421, … |
| maximal normal subgroup of | #101303, #101304, #103421, … |
| maximal quotient of | #243166, #243167, #243168, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 16645);