Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #9103 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C26 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #386 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C23×C4 | C23 |
| prime radical | C2×#535 | C2 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C2 ▷ C1 | |
751 conjugacy classes of subgroups; only the 127 normal subgroups are shown.
This group has 751 conjugacy classes of subgroups — too many to draw. Only its 127 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:
(1,2)(3,4)(5,6,9,13,10,12,8,17)(7,14,15,11,16,20,18,19);(5,7)(6,11)(8,18)(9,15)(10,16)(12,19)(13,20)(14,17);(2,4)(6,12)(8,9)(14,20)(15,18)Polycyclic presentation:
2^8|a^2=g,d^2=h,g^2=h,b^a=bd,c^a=ce,d^a=dh,e^a=eh,f^a=fh,c^b=cf,d^b=dh,d^c=dh,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #94423, #94425, #133356, … |
| maximal normal subgroup of | #94423, #94425, #133356, … |
| maximal quotient of | #111226, #111227, #111553, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 3977);