Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #9109 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #386 |
| commutator | C24 | C22×C4 |
| Frattini, prime radical, cosocle | C25 | C23 |
| LCS | G ▷ C24 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C25 ◁ G | |
| LECS | G ▷ C25 ▷ C2 ▷ C1 | |
459 conjugacy classes of subgroups; only the 119 normal subgroups are shown.
This group has 459 conjugacy classes of subgroups — too many to draw. Only its 119 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 — 3 generators on 20 points:
(2,3)(5,6)(7,10)(8,15,16,11)(9,12)(13,17,20,19)(14,18);(1,2,4,3)(5,7)(6,10)(8,13)(9,14)(11,19)(12,18)(15,17)(16,20);(1,3,4,2)(5,8)(6,11)(7,13)(9,16)(10,17)(12,15)(14,20)(18,19)Polycyclic presentation:
2^8|a^2=g,b^2=d,c^2=d,b^a=bd,c^a=ce,e^a=eh,f^a=fh,c^b=cf,e^b=eh,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #131425, #131426, #131505, … |
| maximal normal subgroup of | #131425, #131426, #131505, … |
| maximal quotient of | #119997, #120013, #120014, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 4193);