Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #8736 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #381 |
| commutator | C24 | C22×C4 |
| Frattini, cosocle | C23×C4 | C23 |
| prime radical | C23×D4 | C22 |
| LCS | G ▷ C24 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C2 ▷ C1 | |
481 conjugacy classes of subgroups; only the 111 normal subgroups are shown.
This group has 481 conjugacy classes of subgroups — too many to draw. Only its 111 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:
(5,6,8,12,9,10,15,18)(7,11,14,19,13,17,16,20);(1,2)(3,4)(6,10)(8,15)(11,17)(14,16);(2,4)(5,7)(6,11,10,17)(8,16)(9,13)(12,20,18,19)(14,15)Polycyclic presentation:
2^8|a^2=g,c^2=d,g^2=h,b^a=bd,c^a=ce,d^a=dh,e^a=eh,c^b=cf,g^b=gh,e^c=eh,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #133490, #133491, #133492, … |
| maximal normal subgroup of | #133490, #133491, #133492, … |
| maximal quotient of | #118678, #118739, #118743, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 4158);